Blender Git Loki

GP: Editable Arc tool

Arc tool is now editable like the Curve tool.
Unlike the curve (bezier) tool this uses an elliptical function.
Remove flip option as it is no longer needed.

Merge branch 'blender2.8' into greasepencil-object

GP: Fix box and circle cyclic on preview stroke

GP: Remove "Close" from Bottom text

This was missing in previous commit.

Merge branch 'greasepencil-object' of git.blender.org:blender into greasepencil-object

Conflicts:
source/blender/editors/gpencil/gpencil_primitive.c

GP: Cleanup. Rename Beziers to Curve

Beziers name can be misunderstood for users. Curve is more generic.

GP: Remove cyclic option

Not compatible with new brush drawing.

GP: Remove Radius control point in Circles

This only adds complexity and don't communicate the information of the radius in a easy way, so it's better keep UI as clean as possible.

GP: Test moving origin point to start control point for Arcs and Curves

GP: Add number of divisions in bottom message for Boxes

It was impossible to see the number of divisions used.

GP: Restore origin point for Lines

Maybe is good tohave where is the origin of the line

GP: Merge errors

GP: Primitive, add noise to box and circle

GP: Change control points size and remove in line

GP: Fix memory leak

GP: Change constants by define for Ctrl points size

This makes changes easier and can be replace by variables or parameters easily.

Merge branch 'blender2.8' into greasepencil-object

GP: Fix wrong end cap when finish stroke

GP: Fix control points size when change zoom

Also replaced the shader used.

GP: Primitive, add brush noise