Blender Git Loki

Cleanup: use mul_v3_mat3_m4v3

Multi-View: Code cleanup

I finally put the time into understanding what was going on here.
Basically RE_AcquireResultImage() produces RenderResults without
RenderViews. That will be fine for now since I'm planning to refactor
RenderResult soon.

Muti-View: viewport crashes when empty is active camera - reported over IRC by Campbell Barton

Fix T44514 Crash under cycles rendering using F12, based on patch from Gaia Clary

Fix T44512: Cycles fails normal bake /w scale flip

Math Lib: add mul_v3_mat3_m4v3

Fix T44011: Ruler/Knife/Loop-cut fail in quad-view

This is a kind of sloppy-focus,
resolving long standing bug with loop-cut/knife/ruler /w quad-view.

Where activating a tool would lock onto one of quad-views,
especially problematic when activating from the toolbar or menus.

Py API: expose operator runtime flags

eg from operator invoke/execute:
self.options.is_grab_cursor

Cleanup: rename GRAB_POINTER -> GRAB_CURSOR

Term pointer is overloaded already.

Sculpt: symmetrize was leaving edge-tags dirty

This is used for the edge-queue

Correct own error in recent sculpt changes

mixed up squared nonsquared length, also remove invalid verify check.

UI: 'View Online Manual' Shortcut

D1031, implement proposal T37478 to give easy access to the online manual.

Use Alt+F1 while hovering over a button/setting.

BGE : addObject in python without reference object.

Making the reference argument optional for the addObject function.
```
scene.addObject("Cube")
```

This allows to keep the rotation, scale and position of the original object.
To avoid layer problems with lights if the reference arguments is None, the new object have the same layer than the active layers in scene.

Reviewers: lordloki, moguri, hg1, sybren

Reviewed By: hg1, sybren

Subscribers: agoose77

Projects: #game_engine

Differential Revision: https://developer.blender.org/D1222

BMesh: increase subdiv smooth strength

Now 1.0 gives near spherical output

Cleanup: bmesh subdivide

var names were a bit cryptic, set return arg last.

BMesh: subdiv smooth, use simpler even calculation

Was checking all vertices adjacent faces,
now just compare the difference between normal angles.

Also default to inverse-square for loopcut-subdiv falloff.

Cleanup: subdivide smooth vertex placement

BMesh: use inverse-square falloff /w smooth-subdiv

Resolves ugly artifacts with multi-cut.

Add inverse-square falloff to bmesh, mask & compo.

BMesh: use const for API calls