Blender Git Loki

Cleanup and move constant to defines

Fix keep thicknees by object

This option must be by object, not by scene.

Cleanup some code too and rename to use better naming for variables.

Merge branch '28' into custom-manipulators

Merge branch 'master' into soc-2017-normal-tools

Added normals to follow mouse location.

Now M key can be used after ALT - L to have clnors point to mouse location.

Add mid range for zfight

Modified do_topo_brush

WIP: adjust the shift factor with distance

added deform weakening factor

the threshold is multiplied with 1.0-fac per deform iteration, so it can automatically break at some point.

Cleanup: Remove unused code

WIP: zfighting al most fixed.

Need a way to fix the problem of zdepth and precision

added additional distances and angles settings in order to control plastic deform better

refinement for plastic deformation

attempt to have "plastic" constraint deform by re-constraining via angle, distance

deformation mode happens when breakable is set to false, but angle or distance is set

Topograb Brush Initialization

applied some fixes that automatic analyze tool suggested

fix attempt for memory leak after loading FM blends in prefractured mode

note: works only with newly saved FM files, older still have unnecessary data in them which wont be automatically cleaned

Merge branch 'blender2.8' into greasepencil-object

Merge branch '28' into custom-manipulators

Merge branch 'blender2.8' into greasepencil-object