Fixed some minor formatting issues and added support for engines that do not natively recognize the AnimTicksPerSecond template.

update_tag() tags for depsgraph update only, update() executes normal recalculation and creates edge data.

API: 34650
fix: x-offset in one mapping of Alphamap was inverted

from Dominique Lorre with own modifications. 

use settings as suggested by John Coady (jdc)

fix for recent mathutils updates. note that the logic here is confusing and Im not sure why the original bone matrix us used at all.

- changed support level to OFFICIAL
- fixed missing last point at building Mesh-ARCs (by pildanovak)
- fixed for changes in API and mathutils by campbell

bugfix [#25903] Export to X3D should provide relative path with forward slash for subdirectories in url of ImageTexture

Fixed: blob finish wrong level raised POV parse error.(the AllObjects.blend test scene now renders (though not all objects supported yet))
Added: support for deactivating all shadows from scene shading panel (per lamp 'no shadow' still works)

Some minor pep8 fixes.

Cleaned up Media and photons UI layouts

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