Blender Git Loki

Change mesh dirty runtime flags to signed int64_t.

Because CD_MASK_XXX are signed longlong, so when assigning to unsigned
longlong you get grumpy compiler errors!

Merge branch 'master' into blender2.8

More tweaks to strict compiler flags

Merge branch 'master' into blender2.8

Silence compilation error around possible fall-through

Fix wrong comparison of drop target URI on X11

Need to compare, NOT to override passed file name.

Fix crash in debug drawing of fullscreen exit icon

Steps to recreate were:
* Go into fullscreen mode (Alt+F10)
* Open debug menu (Ctrl+Alt+D)
* Set value to 1
* Confirming should crash (at least in debug builds)

Remove alternative action-zone drawing for collapsed regions

Was hidden behind debug values 1, 2 and 3.

Also cleaned up logic in region_azone_edge_initialize. It was using a variable
called is_hidden that actually should've been called is_visible.

Eevee: Hair: Fix wrong color when shader is compiling.

Armature: Fix BBones base face winding.

Was producing wrong outline and backface culling.

Armature: Remove big outlines for active bones & reduce axes color.

Fix Bevel percent mode bug 54228

Previous new adjust pass commit should have excluded percent mode.

Fix T54324: remove stencil entries from weight paint keymap

Reviewed By: mont29

Differential Revision: https://developer.blender.org/D3178

Modifier stack: move Edge Split to new Mesh-based system.

Modifier stack: Fix broken 'dirty normals' flag for new mesh-aware modifiers.

Since modifier stack is still primarily based on DM in blender2.8, we
need to copy over 'dirty normals' flag from temp Mesh to DM after
modifier has been evaluated.

Fix T54324: remove stencil entries from weight paint keymap

Reviewed By: mont29

Differential Revision: https://developer.blender.org/D3178

Merge branch 'master' into blender2.8

legacy code cleanup

mostly from manta script export (which needs to be refactored later) and from pointcache (which needs to go altogether)

Fix T54594: Lattice with Armature modifier not updating correctly

Cycles: split off particle data gathering into separate function.

The general particle caching "Obtain" functions can be used for any
curve-type data in objects, including the new hair system data.