Blender Git Loki

Pie menus:

* Rename Align -> Center points in pivot menu
* Turn Manipulator on when a manipulator is selected in manipulator pie

delete constraints always now before deleting meshislands, may crash otherwise

Merge branch 'master' into pie-menus

Pie Menus:

* Do not recenter items for animation if animation timeout is zero. Avoids
flickering at start of animation

* Initialize pies with invalid direction

New pies:

* Snapping sticky pie (comma key)
* Pivot sticky pie (period key)

Fixed a bug of the simulation stepping loop that caused excessive
increase of the overall step.

Added an operator for resetting hairs to their rest positions.

Expose pie animation timeo to user preferences.

Fix some remaining issues with the shade pie menu

Implemented stretch springs for hairs based on rest length of segments.

This is still totally undamped and so will start to accumulate energy
quite quickly!

The default parameters (taken from the original paper) probably require
some tweaking, but the overall result can only be judged once the other
main forces are implemented (in particular damping).

Pies:

* Remove testing pie menu
* Fix enums with missing items not using radial layout
* Fix recentering on bounds not working anymore
* View pie was missing material mode in blender internal.

manta readfile to separate function

Merge remote-tracking branch 'origin/master' into soc-2014-bge

An entire day spent chasing mem management bugs :(

Removed platform-dependant timing code to fix build.

allow convert to object for modifier on non mesh objects too

Added a HairParams struct to collect all the physical parameters of
hair simulation in one place.

This defines user-settable parameters for controlling things like
stretch stiffness, damping, etc. The defaults of these parameters
should give usable results right from the start (possibly with presets),
but tweaking may still be necessary.

Add glew-mx defines

Introduced a rest position vector to hair points.

This defines the "natural" shapes of a hair when no external forces are
acting on it and the velocity is zero. The internal elastic forces of
the hair will cause it to always return to this rest position if
possible.

Remove direct glew include