code cleanup: warnings


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@61066 954f8c5b-7b00-dc11-b283-0030488c597c
Motion tracking: use is_keyed to match naming in other areas of RNA

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@61067 954f8c5b-7b00-dc11-b283-0030488c597c
OSX: Fix an error in own 61065

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@61068 954f8c5b-7b00-dc11-b283-0030488c597c
update credits


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@61069 954f8c5b-7b00-dc11-b283-0030488c597c
Fix for missing calls of BaseMath_ReadCallback() when accessing vector/color elements.
This bug was causing wrong color blending results in Freestyle color modifiers.
Problem report from Light BWK through personal communications, thanks!

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@61070 954f8c5b-7b00-dc11-b283-0030488c597c
Minor code improvements: avoid unnecessary Python object allocations in Freestyle color blending.

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@61071 954f8c5b-7b00-dc11-b283-0030488c597c
Fix [#37275] can't import 2.68a keymap

Now exported keymaps will still be usable accross versions, even if some operator properties disappear (write a warning in console in this case, instead of "crashing").

Also factorized a bit of code here!

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@61073 954f8c5b-7b00-dc11-b283-0030488c597c
Fix [#37297] Crash when Adding and Removing Fluid Particlesystem.

Using freed mem...

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@61074 954f8c5b-7b00-dc11-b283-0030488c597c