Blender Git Loki

Cycles: Bump version number to 1.9.0

This matches Blender Release 2.79.

Fix crash of standalone app after recent refactor

MacOS: Use correct Cocoa protocol on any compiler

UI: replace UI_ITEM_O_RETURN_PROPS /w return arg

Means we can have a version of this function that returns the button
and avoids returning a struct that often isn't used.

UI: avoid double operator type lookup

Introduce "skip" in BLI_Iterator struct

This helps iterators prevent recursion.

Fix renderlayers UI removing the wrong renderlayer

Bug introduced on 1c4c28872721 (well technically in b48694639a).
We should not remove the renderlayer from the context, but instead the one that
is active from scene.

That said, the UI should make a distinction between the scene active render layer
and the one that is active in the UI (and that should be the one used when
removing it).

But for now this is at least more consistent for the users.

Fix T53191: Python API Reference link wrong in splash screen.

Forgot to update splashscreen links when we switched API doc naming
scheme...

Curve Decimate: new tool to simplify bezier curves

Access from the curve clean-up menu

CMake: cleanup

Merge branch 'master' into blender2.8

Draw Manager: re-enable edit-mesh text overlay

Fix manipulator drawing before their refresh callback

Caused glitch with Scale-Cage tool.

Missing NULL pointer check in poly-build tool

CMake: cleanup

Merge branch 'master' into blender2.8

# Conflicts:
# build_files/cmake/macros.cmake
# build_files/cmake/platform/platform_win32.cmake

CMake: use only absolute linker paths for msvc.

cmake's link_directories will supply forward slashes for the search paths, the msvc linker has some issues with that, while it will search for the needed libs just fine, the incremental linker gets fed forward slashes for some libs, while the previous binary has backward slashes in it's metadata, the linker assumes obj files got added and performs a full link instead of an incremental link. This change brings down the link time with newer msvc versions for a trivial edit down from a few minutes to a few seconds.

Merge branch 'master' into blender2.8

Alembic: added frame offset property

The offset is subtracted, so that it's intuitive (dragging slider pushes
the animation further that way on the timeline).

Cycles: restore SOBOL_SKIP hack, for some cases where it helps still.