Fix for Setup Tracking Scene operator

- Ported to new node add operator
- Alpha mode shall be set to Transparent

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@55962 954f8c5b-7b00-dc11-b283-0030488c597c
Added circle selection menu entry for lattice, pose and armature.


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@55963 954f8c5b-7b00-dc11-b283-0030488c597c
Setup tracking scene shall work with Cycles now

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@55964 954f8c5b-7b00-dc11-b283-0030488c597c