In addition the billboards can be scaled by the particle velocity with optional head and tail factors (similar to line drawing options). This allows for pseudo-motionblur effects.
*In Particle Mode, there was no way to see what p-sys is being edited in the 3D View Tool bar, when having multiple ones.
Changed List type to normal (with limit to 3 rows). Request by venomgfx. :)
* Removed redundant text info about disconnected hair from Particle UI.
* Too strict poll functions for render & display panels.
* Like said in the report cache & vertex groups are a part of the particle system (not particle settings) they can't be shown when the settings are pinned.
ui/ --> startup/bl_ui
op/ --> startup/bl_operators
scripts/startup/ is now the only auto-loading script dir which gives some speedup for blender loading too.
~/.blender/2.56/scripts/startup works for auto-loading scripts too.
