Blender Git Loki

Cleanup remove debug prints.

Merge branch 'master' into uuid-id

Make session-wise uuid increment atomic, and reset it on file load.

Reseting on file load should avoid almost all possible case of counter
overflow, and makes sense anyway, since loading a file fully
resets/restarts an editing session.

Merge branch 'master' into uuid-id

Forgot some part of renaming cleanup in previous commit.

Safeguard against overflow of static uuid counter.

Some changes from review.

Merge branch 'master' into uuid-id

Conflicts:
source/blender/blenkernel/BKE_main_idmap.h

Fixes to Session uuids.

Do not assign new session uuid if ID already has one.
Only re-use existing session uuids from read IDs in undo case. Regular
file loading requires a full reset of the uuids.

Fix mistake in ghash handling code in new id_map' uuid thing.

Forgot to free new id_map uuid ghash in previous commit.

Add uuid support to main_idmap.

Merge branch 'master' into uuid-id

Add an session-wise uuid integer to IDs.

This is intended to provide undo with a way to find IDs across several
'memory realms' (undo speedup project).