Blender Git Loki

Fix identation error

fix T50899: Even though the Shrinkwrap options hide the possibility of using a non-mesh target, you can still circumvent this... Causing Crash

Improve outliner drag&drop feedback by using drop poll callbacks

This way we can ensure the overlay to indicate where the item would be
placed if it was dropped now is always at the correct place and doesn't
mislead the user.

Merge branch 'blender2.8' into gpencil_2.8

New operator to convert scene gp datablock to gp object

Improve poll method for Layers UI panel

Update properties UI panel when change

Correct glPixelTransfer function

Layers: fix bug in move layer collection above/below

Reported by Julian Eisel (Severin)

Gaah, managed to undo a previous fix somehow...

Somehow undid rBc70eb873057 in rB8e303aae255.

Draw drag&drop feedback overlays with element indentation

That way users can see better at which hierarchy level the element will
be inserted into.

Fix incorrect positioning of collection when dropping it after expanded one

Fix T50900: Text-Blocks created from "Edit Source" have zero users.

Fix useless allocation of edge_vectors in threaded case of loop split generation.

Cycles: Cleanup, extra semicolon and space

Support drag & drop of collections across multiple hierarchy levels

Two issues are remaining, they'll be fixed separately:
* Graphical feedback when dragging within the master collection is wrong
* There's some bug where collections swap places instead, Dalai will investigate

Fix lamp draw setting color without checking if its needed

Fix issues in outliner collection reordering function

Adjust kmi header

Cleanup: struct flags for select picking