Blender Git Loki

Clay: Don't use hardcoded constant in the string

Stringify the actual constant instead.

Multi-Object-Editing: select random by Jefferson Rausseo with changes

Aside from identation, seed should change for each object. Otherwise to objects
with a copied mesh would get the exactly same "random" selection.

And we do so in a consistent way so it doesn't vary depending on
object order.

Seed bump using hash suggested by Campbell Barton and Sergey Sharybin.

Maniphest Tasks: T54643
Differential Revision: https://developer.blender.org/D3231

Fix: Re-enable toolshelf panels for GP tools

We will convert the UI later, so it can stay like this for now.

Ported Mesh Deform modifier

This modifier still has issues that are not related to this port:

- While editing the deformation mesh, the deformed mesh doesn't update.
This update only happens after exiting edit mode, making editing
cumbersome.
- Binding doesn't work yet. It works fine when binding in master and
loading pre-bound in 2.8. This was also an issue before this port, and
will be investigated separately.

Cleanup: Simplify logic

looptri + bvhtree support for Mesh

Multi-Object-Editing: vertices smooth by Jefferson Rausseo

Changes by me:
* Identation (tabs not space)
* Moving RNA_.*_get outside for loop)

Maniphest Tasks: T54643
Differential Revision: https://developer.blender.org/D3230

Multi-Object-Editing : Extrude Repeat by Falk David

Maniphest Tasks: T54643
Differential Revision: https://developer.blender.org/D3224

Cleanup: Remove the old "total palettes" entry from the "Information" panel

Prevent segfault when opening file browser while a 2.79 file was loaded.

Loading a file that was written with the master branch into the 2.8 branch,
and then trying to load or save, caused a segfault.

Reshuffle order of panels in Propertes Editor -> Data, so that Datablock vs Layer settings aren't as mixed up

Edit Mesh: multi-object rotate_uvs support by Pablo Dobarro

Changes by me: Moving RNA_.*get outside for loop and indentation fix.

Maniphest Tasks: T54643
Differential Revision: https://developer.blender.org/D3221

Edit Mesh: multi-object reverse_uvs support by Pablo Dobarro

Maniphest Tasks: T54643
Differential Revision: https://developer.blender.org/D3220

Modifiers stack: port Curve to new Mesh-based system.

Fix compiler warning - comment within comment

Rename BKE_bmesh_to_mesh to BKE_bmesh_to_mesh_nomain.

Let's be clear about functions generating datablocks outside of Main
database.

BKE_mesh_new ? BKE_mesh_new_nomain

Including 'nomain' in the name explicitifies that the returned mesh is
NOT stored in any library.

Cleanup: quiet warning, whitespace

Merge branch 'blender2.8' into greasepencil-object

Fix crash cancelling search, caused by D3207