Blender Git Loki

Guide hair drawing for hair particles.

Without this the particle system only shows the actual non-simulated
hairs ("guide hairs") during edit mode. These hairs are used for goals
as well, so showing them in the regular viewport is pretty important.

Also the usual hair curves are interpolated along the entire length,
which makes it very difficult to see exact vertex positions, unless
using exact powers of 2 for the segment number and match the display
steps.

Fixed RNA update callbacks to ensure the hair path cache is rebuilt.

Fix for hair shape key ui script.

Fixed some ui script errors.

Fixed some uses of ob->shapenr instead of psys->shapenr.

Replaced the single `ID *from` pointer in shape keys with a more
detailed `owner` struct.

This allows distinction of classic ID block shape keys from particle
system keys.

Evaluate shape keys when building the particle path cache.

Placeholder widget code for spotlamps

Shape key "specials" menu for particle shape keys.

Renamed file to make it consistent with object shapekey operators.

Fix for RNA using ptr->id.data instead of ptr->data for ParticleSystem.

Merge branch 'master' into wiggly-widgets

Move widget drawing at a higher level - try drawing on top of rendering
too.

Rationale - widgets might be useful to have even on rendered scenes -
we'll have to see about how this will work

Also use area initialization code to register region specific widgets once.

lala

Conversion functions from/to hair shape keys to particle data.

Shape key infrastructure for hair.

Merge branch 'master' into wiggly-widgets

Merge branch 'wiggly-widgets' into gooseberry

Fix release comfirm for central widget in transform operator

Fixes to highlight code, now widgetmaps remember last active widget and
reset accordingly.

Merge branch 'hair_immediate_fixes' into gooseberry