Blender Git Loki

From review: favour anonymous Enum over defines

From review: rename 'eye' to 'multiview_eye'

From review: rename views_setup by views_format

From review: rename 'use_multiple_views' to 'use_multiview'

From review: use _arr for arrays

Merge branch 'master' into depsgraph_refactor

Remove check for "Grease Pencil Mode" from color swatch drawing for GP Layer entries
in preparation for upcoming changes here

Initial/backend support for animating settings of Grease Pencil datablocks

This commit makes it possible to insert keyframes for the line thickness,
opacity, colour, and even volumetric/non-volumetric options. It is useful
to be able to do this in order to control the thickness of lines when the
camera is placed quite close.

Notes:
* Currently, apart from the keyframe status indicator colours applied to the
buttons, these keyframes are not shown anywhere. Support for this will be
added to the animation editors shortly, but for those who need this functionality,
it's better that it works in some way first :)
* No support for drivers exists yet. This may still get supported a bit later...

GP RNA: Use soft min/max on the line thickness property to make it more controllable

From review: use STRPREFIX instead of strstr

From review: cleanup top-bottom and side-by-side drawing loops

Don't show GP stroke verts when doing OpenGL renders

Merge branch 'master' into GPencil_EditStrokes

From review: replace sprintf by BLI_snprintf

From review: small change and a new TODO to the list:

If a movie fails for one view what to do?

Merge branch 'master' into ime

General Review Changes

Main changes:
* avoid using MEM_mallocN on every redraw
* continue implementation of WITH_INPUT_IME CMake flag
* whitespace and code style cleanups

Bugfix: ammend from previous commit, camera border was still failing in some cases

Bugfix: camera border not showing when 'show_stereo_3d_cameras' is disabled

(reported on review)

Merge branch 'master' into mesh-transfer-data