AnimAll: Inserting keyframes on lattices now works in edit mode too. Requested by Virgilio Vasconcelos @ BlenderPro!

[[Split portion of a mixed commit.]]

finished

IMPORTANT: I plan on deleting Rotobezier script as soon as we got the new masking tools in Trunk. However since animating curves is still useful for non masking tasks I've:

- Ported Curve animation features from Rotobezier addon to Animall. Rotobezier animated files should be compatible with AnimAll. Left the masking specific features out though.
- Fixed Vertex Color animation for new API
- Updated UVs to new API, however this still doesn't work because of bug #31631
- Vertex Groups also don't work because of bug #31632, however code still looked alright.

removed warning

additions to the RNA system I've added support for ShapeKey layer
animation both in Mesh and Lattice objects. This allows to animate
points inside a ShapeKey layer, which is inline with the rest of the
animation system, ie: will work with modifiers and other SKs (even
other animated SKs). For this reason Ive also removed support for direct
point animation