Blender Git Loki

Cleanup Collada: renamed parameters for better reading

I tested and commited each of the documented changes
separately and amended all changes into one single commit:

None of the changes makes a functional change. All changes are
in AnimationExporter.h and AnimationExporter.cpp

* Renamed from transformName to channel_type
* in create_sampled_animation():
renamed label to channel_type
* in export_sampled_transrotloc_animation()
in export_sampled_matrix_animation()
in export_sampled_animation_set()
in create_sampled_animation():
Renamed variable from times to frames
* Fixed Indentation in AnimationExporter.h
* break up function definition into multiple lines.