Revert 2a4e2ce..0ca4fcc

This rolls back to commit 2a4e2ce68974ba187e0544f73dae9748704f2058.
labeled_point.py. Renamed from sg_labeled_point.py
LabeledPoint. Updated references
Log. Updated
colabeling.py. Renamed from sg_colabeling.py
Colabeling. Updated references