Update package.xml file in all packages

cliff_detector/package.xml

@@ -1,11 +1,11 @@
 <?xml version="1.0"?>
-<?xml-model href="http://download.ros.org/schema/package_format2.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+
 <package format="3">
   <name>cliff_detector</name>
   <version>1.0.1</version>
   <description>Cliff detector package</description>
-  <author>Michal Drwiega (http://www.mdrwiega.com)</author>
-  <maintainer email="[email protected]">Michal Drwiega</maintainer>
+  <maintainer email="[email protected]">Michal Drwiega (https://mdrwiega.com/)</maintainer>
   <license>BSD</license>
   <url type="website">http://ros.org/wiki/depth_nav_tools</url>
 

depth_sensor_pose/package.xml

@@ -1,9 +1,11 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+
 <package format="3">
   <name>depth_sensor_pose</name>
   <version>1.1.0</version>
   <description>Depth sensor pose calibration package</description>
-  <author>Michal Drwiega (http://www.mdrwiega.com)</author>
-  <maintainer email="[email protected]">Michal Drwiega</maintainer>
+  <maintainer email="[email protected]">Michal Drwiega (https://mdrwiega.com/)</maintainer>
   <license>BSD</license>
   <url type="website">http://ros.org/wiki/depth_nav_tools</url>
 

laserscan_kinect/package.xml

@@ -1,3 +1,6 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+
 <package format="3">
   <name>laserscan_kinect</name>
   <version>1.1.0</version>
@@ -6,8 +9,7 @@
   to a 2D laser scanner format. The conversion algorithm allows to remove a ground from the depth image
   and compensate the sensor mount tilt angle relative to the ground.
   </description>
-  <author>Michal Drwiega (http://www.mdrwiega.com)</author>
-  <maintainer email="[email protected]">Michal Drwiega</maintainer>
+  <maintainer email="[email protected]">Michal Drwiega (https://mdrwiega.com/)</maintainer>
   <license>BSD</license>
   <url type="website">http://ros.org/wiki/depth_nav_tools</url>
 

nav_layer_from_points/package.xml

@@ -1,9 +1,11 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+
 <package format="3">
   <name>nav_layer_from_points</name>
   <version>1.0.0</version>
   <description> Plugin-based layers for the navigation software. </description>
-  <author>Michal Drwiega (http://www.mdrwiega.com)</author>
-  <maintainer email="[email protected]">Michal Drwiega</maintainer>
+  <maintainer email="[email protected]">Michal Drwiega (https://mdrwiega.com/)</maintainer>
   <license>BSD</license>
   <url type="website">http://ros.org/wiki/depth_nav_tools</url>
 
@@ -23,5 +25,3 @@
     <build_type>ament_cmake</build_type>
   </export>
 </package>
-
-