Blender Git Loki

Cage widget now does something useful (tm). Basically, we can now
transform the x direction of the backdrop in sequencer when a viewer
node is active.

There are still some issues with property transform not being a proper
operator, but we can fix that easily.

To make full 2D transform work we need positions stored in one property.

2D widgets Cleanup:

* Get rid of invalid flag (we avoid drawing widgets by dereferencing RNA
now so it should be OK)

* Add intersect function for 2D widgets (still needs correct mapping to
be any useful though)

Correctly center the widget in node space

Merge branch 'master' into gooseberry

Merge branch 'wiggly-widgets' into gooseberry

Cage actually now draws something, also change widget, will be modified
to control placement of backdrop.

Fix for invalid particle pointer access in mixed particle/child loop.

Better update function for particle settings affecting nested cloth
modifier.

Another fix for particle instance child lookups, was not subtracting
parent amount.

Fix for applying the bending randomness factor.

A stupid hack is needed here, changing the way the factor is applied to
angular bending springs. In cloth sim the bending factor of individual
springs is applied as a mix value between the bending stiffness and a
max value, but this max value isn't even used in hair sim so that
approach becomes useless.

Randomness factor for hair bending stiffness.

This helps to create some variation in a hair system, which can
otherwise become very uniform and boring. It's yet another confusing
setting in a system that should have been nodified, but only option for
now (broken windows ...)

Fix for particle instance initial frames.

These were not orthonormal and tended to flip with changing hair
direction, now use the particle hair matrix which is stable wrt. the
mesh surface.

Merge branch 'master' into wiggly-widgets

Fix T42639, editcurve flags not getting restored on undo.

Error here could be reproduced by tweaking curve properties such as
2d-3d or fill type and undoing.

Initialize the snaping aspect just once.

Merge branch 'master' into gooseberry

Merge branch 'wiggly-widgets' into gooseberry

Fix crash with widgetgroup

Merge branch 'wiggly-widgets' into gooseberry

Conflicts:
source/blender/editors/include/ED_view3d.h
source/blender/editors/space_view3d/view3d_draw.c
source/blender/editors/transform/transform_manipulator.c

lost instance of transform manipulator