REL: set version to 1.6.0rc1

Also a small update to the release scripts.

pavement.py

@@ -102,7 +102,7 @@
 
 # Start/end of the log (from git)
 LOG_START = 'v1.5.0'
-LOG_END = 'v1.6.0b1'
+LOG_END = 'v1.6.0rc1'
 
 
 #-------------------------------------------------------

release.sh

@@ -5,6 +5,17 @@
 # downloads, i.e. two versions for Python 2.7. The Intel 32/64-bit version is
 # for OS X 10.6+, the other dmg installers are for 10.3+ and are built on 10.5
 
+# Check we're using the correct g++/c++ for the 32-bit 2.6 version we build for
+# the docs and the 64-bit 2.7 dmg installer.
+# We do this because for Python 2.6 we use a symlink on the PATH to select
+# /usr/bin/g++-4.0, while for Python 2.7 we need the default 4.2 version.
+export PATH=~/Code/tmp/gpp40temp/:$PATH
+gpp="$(g++ --version | grep "4.0")"
+if [ -z "$gpp" ]; then
+    echo "Wrong g++ version, we need 4.0 to compile scipy with Python 2.6"
+    exit 1
+fi
+
 # bootstrap needed to ensure we build the docs from the right scipy version
 paver bootstrap
 source bootstrap/bin/activate
@@ -19,6 +30,14 @@ paver pdf
 paver sdist
 
 export MACOSX_DEPLOYMENT_TARGET=10.6
+# Use GCC 4.2 for 64-bit OS X installer for Python 2.7
+export PATH=~/Code/tmp/gpp42temp/:$PATH
+gpp="$(g++ --version | grep "4.2")"
+if [ -z "$gpp" ]; then
+    echo "Wrong g++ version, we need 4.2 for 64-bit binary for Python 2.7"
+    exit 1
+fi
+
 paver dmg -p 2.7   # 32/64-bit version
 
 paver bdist_superpack -p 3.2

setup.py

@@ -57,8 +57,8 @@
 MAJOR               = 1
 MINOR               = 6
 MICRO               = 0
-ISRELEASED          = False
-VERSION             = '%d.%d.%db3' % (MAJOR, MINOR, MICRO)
+ISRELEASED          = True
+VERSION             = '%d.%d.%rc1' % (MAJOR, MINOR, MICRO)
 
 # Return the git revision as a string
 def git_version():