Blender Git Loki

Store edge topology explicitly in Alembic files as a user property.

This is not a native part of the core Alembic mesh schema, but can be
defined simply as a custom property.

Two advantages:
* Loose edges without faces are stored in the Alembic files and restored
on loading
* Building edges on the fly after loading topology from the cache was
the biggest bottleneck for cache performance.

Support endpoint snapping correctly.

First iteration of snapping based on strips - will be improved based on
imput from Mathieu.

Merge branch 'master' into GPencil_EditStrokes

Conflicts:
source/blender/editors/gpencil/gpencil_buttons.c

Keep a permanent cache reader instance in the point cache modifier and
handle explicit mode switching between reading/writing.

Merge branch 'master' into soc-2014-shapekey

Merge branch 'master' into mesh-transfer-data

Merge branch 'master' into temp_custom_loop_normals

Merge branch 'master' into depsgraph_refactor

for rigidbodies with mesh shape, take only the mesh into account when triggering rigidbodies (instead of boundingbox)

Depsgraph: Initial move towards animation support

It kinda works now, but gives issues with threaded update.
Plus it' really need to be cleaned up. Committing mainly to
have a starting point which does something.

Depsgraph: Bunch of node relation fixes, some other changes as well

This commit mainly ensures that relations between operations are more or less
correct (well, they're correct for the tests files i've got here), Namely:

- Added component relation between transform and geometry components.
This is a temporary workaround just to play around a bit, because it solves
some missing updates but also introduces unwanted updates.

For example, such relation solves missing updates of boolean modifier, but
introduces extra data updates when dragging default cube.

Think proper way to deal with this would be to make it so in the example above
boolean modifier adds a relation between modifier node and transform component.

- Added an uber object transform update, which is the last in the transform
component.

This way we can have proper object transform update without introducing storage
of the intermediate matricies for now.

This is a temporary solution for until we've got proper granularity.

- Made it so firts modifier depends on the object geometry.

- Made it so local constraints depends on local transform operation.

- Seems pose flush should depend on all the pose channels, otherwise what it is
gonna to flush?

- Fixed target key of constraint targeted to a bone.

This commit also gets rid of few temp hacks, and now the have working Victor rig.

WidgetMaps:

Now widgetmaps get created and destroyed with the area. Not sure if it's
the best design but it avoids too many creations and recreations.

arrow offset now calculated at property binding time - no RNA access
during interaction means no chance of crash during undo.

Bound properties/operators to widgets at draw time. This fits our design
much better (is the same as the way panels work) and will help avoiding
some crashes on undo.

Merge branch 'master' into soc-2014-shapekey

Conflicts:
source/blender/editors/mesh/editmesh_utils.c

Revert "Squashed commit of mesh-transfer-data branch."

This reverts commit dc518499c3ef21bde8e8b5acfceba51cd038ecb8.

Fix for grid drawing in 3D view, was using one less grid cell.

Squashed commit of mesh-transfer-data branch.

Merge branch 'master' into experimental-build

Fix T42486: Array modifier cap-end crash

Thanks to @PatB for the fix.