be consistent with e-turtle collision space interface

...ision_space_fcl/include/collision_space_fcl/environment.h

...on_space_fcl/include/collision_space_fcl/environmentFCL.h

...ace_fcl/include/collision_space_fcl/environment_objects.h

trunk/collision_space_fcl/src/environment.cpp

trunk/collision_space_fcl/src/environmentFCL.cpp

...ollision_space_fcl_test/test/test_collision_space_fcl.cpp

trunk/fcl/manifest.xml