Blender Git Loki

Merge branch 'master' into missing-libs

Merge branch 'master' into id-remap

Merge branch 'master' into missing-libs

Merge branch 'master' into id-remap

Some minor tweaks & cleanup.

Merge branch 'master' into id-remap

Merge branch 'master' into id-remap

Merge branch 'master' into missing-libs

Merge branch 'master' into id-remap

Merge branch 'master' into missing-libs

Fix some dummy mistake, add simple RNA callback to 'remap' IDs.

Also, added Object.data to BKE_library_foreach_ID_link(), wonder if there was a good reason
for this to not be here???

Fix several issues, add a quick and dirty new action in Outliner to remap IDs.

We have to take care of Object->data aside from main foreach loop, since we can
only replace that pointer if object is **not** in Edit mode!

Also, added a "Remap" action to ID context menu of outliner. This is **very far**
from nice and pretty code/feature, but it allows to quickly test the code.

Only did very quick tests with meshes so far...

Add main 'ID remap' function.

Theoretical code, compiles, but needs to be tested!

ID remapping: first step - modify some editors callback to not only support ID freeing, but also ID remapping.

This seems to be OK, but will obviously need much more testing - and is useless as-is, we need
the big ID remapping code itself still.

Also, Nodetrees' remapping of Scene IDs is still TODO, not sure yet how to do this.

Merge branch 'master' into missing-libs

Merge branch 'master' into missing-libs

Merge branch 'master' into missing-libs

Fix rebase mess :/

Add outliner's visualization for broken libs, and also tag lib ID itself as missing.

Handling missing libs: changed idea, now adding 'real' empty data.

Just having 'NULL' data as placeholder is not really possible, too much places
to check against that.

WIP commit, still much to be done!

See T43351 for details.

Differential Revision: https://developer.blender.org/D1394