ran gdx-tools HeaderFixer tool
Warnings
Merge branch 'origin/master'
Added a void circle builder (circleLine) to create a simple circle line without any triangle
Added ellipse builder
fixed vertices and indices ensuring
Merge pull request #818 from xoppa/3dapi

various bullet changes
fix parameters on circle
Fix on radius
Adjust UVs differently to avoid FP rounding errors.

Some 1x1 pixel regions on a 1024x1024 atlas weren't rendering.
Merge branch 'origin/master'
Added Actor#sizeChanged. Widget/WidgetGroup call invalidate in it.
Merge pull request #806 from jrenner/run-header-tool

ran gdx-tools HeaderFixer tool
Add intersectRectangles to Intersector

Closes #823.
Merge pull request #817 from VinceAngel/master

Added a void circle builder (circleLine) to create a simple circle line
Small changes to MeshBuilder