Cycles: Don't use guarded vector for statically initialized data

This will confuse hell of a guarded allocators because it is possible
to have allocation happened prior to Blender's guarded allocator is
fully initialized.

This was causing crashes and assert failures when running blender
with fully guarded memory allocator.

Cycles: Fix shadowing variable which also causes use of uninitialized variable

Was causing wrong aperture for panorama cameras.

Seems to be a regression in 371d357.

Fix: Grease Pencil palettes were missing a RNA path callback

Fix Cycles address space OpenCL error after recent fix.

Cycles: Fix static initialization order fiasco

Initialization order of global stats and node types was not strictly
defined and it was possible to have node types initialized first and
stats after that. This will zero out memory which was allocated from
the statistics causing assert failure when de-initializing node types.

Cycles: Fix uninitialized variable from the previous commit

Blender 2.78: Point submodules to a new hash

Cycles: Remove explicit std:: from types where possible

We have our own abstraction level on top of the STL's implementation.
This commit will guarantee our tweaks are used for all cases.

Blender 2.78: Port style cleanup from Cycles

Kinda nice to have official release code to be really clean.

Fix T49827L Crash linking material while in Material viewport shading mode

Material linking might and does change the way how drawObject is calculated
but does not tag drawObject for recalculation in any way.

Now use dependency graph to tag draw object for reclaculation. Currently do
this using OB_RECALC_DATA taq since tagging is not very granular yet. In the
future we can introduce ore granular tagging in the new dependency graph
easily.

Simple and safe for 2.78a.

Fix T49818: Crash when rendering with motion blur

It was possible to have non-initialized unaligned BVH split
to be used when regular BVH split SAH was inf. Now we ensure
that unaligned splitter is only used when it's really initialized.

It's a regression and should be in 2.78a.

Cycles: Cleanup, spaces

Fix T49764: Audio strips crackle when animating the volume

- Implemented linear interpolation for volume changes in the software
mixer.
- Using this in the software device.

Fix T49750: Cycles wrong ray differentials for perspective and stereo cameras.

Fix T49793 : Fix enabling SSE2 globally for msvc.

When feeding msvc both /arch:sse2 and /arch:sse it's not smart enough to pick the best option, just goes with the last option

Fix mistake in BKE_mesh_new_from_object handling of materials in MetaBall case.

Typo, spoted by Coverity scan.

To be backported to 2.78a.

Fix T49656: Crash when starting playback while using JACK audio with A/V sync

When ED_screen_animation_play is called from wm_event_do_handlers,ScrArea *sa = CTX_wm_area(C); is NULL in ED_screen_animation_timer.
Informing the audio system in CTX_data_main_set, that a new Main has been set.

Cycles: use near clipping distance in panorama camera.

Reviewed By: sergey, brecht, dfelinto

Differential Revision: https://developer.blender.org/D1952

Fix T49797: Exception from scene update handler might leak external engine descriptors

This was causing memory leaks in Cycles.

Some more detailed information in the comment in the code.

Seems to be safe and nice enough for 2.78a.

Fix T49789: Compositor mix node interpolation bug