Update GNU copying permission statement

We do not want to keep drack of the Free Software Foundation office.
Instead we use the recommened lines from https://www.gnu.org/licenses/gpl-howto.en.html

cflib/__init__.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 The Crazyflie Micro Quadcopter library API used to communicate with the
 Crazyflie Micro Quadcopter via a communication link.

cflib/bootloader/__init__.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Bootloading utilities for the Crazyflie.
 """

cflib/bootloader/boottypes.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Bootloading utilities for the Crazyflie.
 """

cflib/bootloader/cloader.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Crazyflie radio bootloader for flashing firmware.
 """

cflib/crazyflie/__init__.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 The Crazyflie module is used to easily connect/send/receive data
 from a Crazyflie.

cflib/crazyflie/appchannel.py

@@ -17,10 +17,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Data channel to communicate with an application running in the Crazyflie
 """

cflib/crazyflie/commander.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Used for sending control setpoints to the Crazyflie
 """

cflib/crazyflie/console.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Crazyflie console is used to receive characters printed using printf
 from the firmware.

cflib/crazyflie/extpos.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Used for sending external position to the Crazyflie
 """

cflib/crazyflie/high_level_commander.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Used for sending high level setpoints to the Crazyflie
 """

cflib/crazyflie/localization.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Subsytem handling localization-related data communication
 """

cflib/crazyflie/log.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 # flake8: noqa
 """
 Enables logging of variables from the Crazyflie.

cflib/crazyflie/mem/__init__.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Enables access to the Crazyflie memory subsystem.
 

cflib/crazyflie/param.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Enables reading/writing of parameter values to/from the Crazyflie.
 

cflib/crazyflie/platformservice.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Used for sending control setpoints to the Crazyflie
 """

cflib/crazyflie/swarm.py

@@ -17,10 +17,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 import time
 from collections import namedtuple
 from threading import Thread

cflib/crazyflie/syncCrazyflie.py

@@ -19,10 +19,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 The synchronous Crazyflie class is a wrapper around the "normal" Crazyflie
 class. It handles the asynchronous nature of the Crazyflie API and turns it

cflib/crazyflie/syncLogger.py

@@ -19,10 +19,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 This class provides synchronous access to log data from the Crazyflie.
 

cflib/crazyflie/toc.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 A generic TableOfContents module that is used to fetch, store and manipulate
 a TOC for logging or parameters.

cflib/crazyflie/toccache.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Access the TOC cache for reading/writing. It supports both user
 cache and dist cache.

cflib/crtp/__init__.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """Scans and creates communication interfaces."""
 import logging
 import os

cflib/crtp/cflinkcppdriver.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Crazyflie driver using the cflinkcpp implementation.
 

cflib/crtp/crtpdriver.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 CRTP Driver main class.
 """

cflib/crtp/exceptions.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Exception used when the URI is not for the current driver
 (ie. radio:// for the serial driver ...)

cflib/crtp/radiodriver.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Crazyradio CRTP link driver.
 

cflib/crtp/serialdriver.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 An early serial link driver. This could still be used (after some fixing) to
 run high-speed CRTP with the Crazyflie. The UART can be run at 2Mbit.

cflib/crtp/udpdriver.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """ CRTP UDP Driver. Work either with the UDP server or with an UDP device
 See udpserver.py for the protocol"""
 import queue

cflib/crtp/usbdriver.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Crazyflie USB driver.
 

cflib/drivers/__init__.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 Drivers for the link interfaces that can be used by CRTP.
 """

cflib/drivers/cfusb.py

@@ -20,10 +20,8 @@
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-#  MA  02110-1301, USA.
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 USB driver for the Crazyflie.
 """