Blender Git Loki

GPencil: Refactor and small fixes

- Removed dot at the end of prop description
- Replaced return NULL with asserts
- Changed default handle type for small curves
- Added comment

Merge branch 'master' into greasepencil-edit-curve

Merge branch 'master' into greasepencil-edit-curve

GPencil: Fix circle select curve conversion

GPencil: Convert to curve on selection

Conversion to curve was only working for click slection.
This commit adds conversion to curve to box, circle and lasso selection.

Merge branch 'master' into greasepencil-edit-curve

GPencil: Fix angle initialization

GPencil: Cleanup compiler warnings

Merge branch 'soc-2020-greasepencil-curve' of git.blender.org:blender into soc-2020-greasepencil-curve

Merge branch 'greasepencil-edit-curve' into soc-2020-greasepencil-curve

GPencil: Rename parameters

GPencil: Fix crash when delete stroke

The memory of the stroke is not avaliable after calling `BKE_gpencil_free_stroke` and cannot free the link.

Instead, before calling the free function, remove the link of the listbase.

GPencil: Fix crash when delete stroke

The memory of the stroke is not avaliable after calling `BKE_gpencil_free_stroke` and cannot free the link.

Instead, before calling the free function, remove the link of the listbase.

GPencil: Handle strokes with one or two points

Generating the curve for a stroke with one or two strokes could
crash because it was not handled properly.

Merge branch 'greasepencil-edit-curve' into soc-2020-greasepencil-curve

GPencil: Move Curve versioning to the end of the file

Some files were not patched. When move to master we decide if we must do a version bump.

Merge branch 'master' into greasepencil-edit-curve

GPencil: Move Curve versioning to the end of the file

Some files were not patched. When move to master we decide if we must do a version bump.

Merge branch 'master' into greasepencil-edit-curve

GPencil: Report operators that are not implemented