Blender Git Loki

Cleanup: move tool-bar checks into functions

Also support separator in tool-bar sub-menus

Fix Blenderplayer (tm)

Freestyle: Fix access freed memory when freeing fresstyle bmain

Some of the uninitializaiton code was leaving bases pointing freed memory.

Fix iterator usage from C++ code

Old code was not supported by GCC, see some details and progress

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55606

Freestyle: Keep lines on manageable complexity

Two level;s of casts in a single line, c'mon.

Fix Cycles showing empty tiles while they are being denoised.

Merge branch 'master' into blender2.8

Cleanup: minor comment correction

UI: add UI_SELECT_DRAW flag

Allow to draw as pressed w/o interfering with behavior.

Resolves issue where buttons raised on mouse-over.

Merge branch 'master' into blender2.8

# Conflicts:
# tests/gtests/alembic/abc_export_test.cc

Alembic: not using global in unit test.

Thanks @sergey for pointing out this fix.

Fix T53182: cancelling save buffers + denoising render clears image.

Merge branch 'master' into blender2.8

UI: free up bit in uiBut.flag

UI: workaround glitch refreshing the toolbar

UI: draw operator menus below buttons

Following the down arrow on the buttons

UI: store tool index of non-active tools

Cycles: Add another limit to OpenCL memory usage

Some drivers may report very large allocation sizes, which could cause
unnecessary memory usage. This is now limited to 2gb which should
still be enough to get the needed performance benefits without waste.

UI: support nested tools in toolbar

Space clip: Make it more clear that filter track does not use any settings from tool shelf