Fix armature creation in Builder script

-> Amend commit 65cc84f08
[ros] Fix typo in ros_request_manager
Replace a try except by member existance test in abstractcomponent
[builder] Put ArmatrePose in right alphabetical order
[builder] fix new material color bug

The last material in the bpy.data.materials is not the last one to be
added, which is for objects and logic bricks.
[bge] rename blender_obj in bge_object

To be consistent with 9f538ab57ee54b55a34dbd7cb5ea5e6d6e1fdf01