Blender Git Loki

Cleanup: trailing space in CMake files

Edit Mesh: Fix buggy occlusion when in xray mode.

This mimics the behaviour of the old wireframe mode. When in Xray mode,
don't use the limit selection to visible option.

Also hide the option if Xray is enabled.

Python: Allow untrusted py-drivers to run limited expressions

Limit to a restricted set of built-ins, as well as the math module.
Also restrict of op-codes, disallowing imports and attribute access.

This allows most math expressions to run
without any performance cost once the initial check is done.

See: D1862 for details.

Merge branch 'master' into blender2.8

Cleanup: trailing space for remaining source/

Cleanup: trailing space for blenloader

Cleanup: trailing space for blenkernel

Cleanup: trailing space for compositor

Cleanup: trailing space for freestyle

Cleanup: trailing space for imbuf module

Cleanup: trailing space for modifiers

Cleanup: trailing space for DNA headers

Cleanup: trailing space in source/gameengine/

Merge branch 'master' into blender2.8

Cleanup: trailing space for BLI

Cleanup: remove unused BLI_rebase_path

Merge branch 'master' into blender2.8

Cleanup: BLI path extension API

Use BLI_path_extension_* prefix.

Merge branch 'master' into blender2.8

BLI_path: add string size debug define

Off by default, only for debugging.