fixes #25
minor tweaks and bug fixes
Merge branch 'present'

Conflicts:
	src/main/java/jkanvas/CameraZUI.java
	src/main/java/jkanvas/Canvas.java
	src/main/java/jkanvas/KanvasInteraction.java
	src/main/java/jkanvas/examples/MatrixMain.java
	src/main/java/jkanvas/examples/NodeLinkMain.java
	src/main/java/jkanvas/groups/LinearGroup.java
	src/main/java/jkanvas/groups/RenderGroup.java
	src/main/java/jkanvas/matrix/MatrixRenderpass.java
	src/main/java/jkanvas/nodelink/NodeLinkRenderpass.java
	src/main/java/jkanvas/painter/BorderRenderpass.java
	src/main/java/jkanvas/painter/PainterAdapter.java
	src/main/java/jkanvas/painter/Renderpass.java
	src/main/java/jkanvas/painter/RenderpassPainter.java
Merge branch 'animlist'

Conflicts:
	src/main/java/jkanvas/groups/RenderGroup.java
	src/main/java/jkanvas/painter/CachedRenderpass.java
	src/main/java/jkanvas/painter/PainterAdapter.java
	src/main/java/jkanvas/painter/RenderpassPainter.java
Merge branch 'master'

Conflicts:
	readme.md
	src/main/java/jkanvas/examples/MatrixMain.java
	src/main/java/jkanvas/painter/RenderpassPainter.java
Merge remote-tracking branch 'origin/norectalloc'