fixed canvas render texture bug

Explicit multiplication to avoid side effects to the texture's original crop property

Fix #2006 by applying texture resolution to crop size

Merge pull request #2045 from LibertyGlobal/cleanup_fixes ...

Add calls to super destructors and other extra cleanup work.

Revert unneccessary changes from our code base

math -> PIXI ...

fix wrong type

graphics update ...

fixes a number of issues with open and closed paths

webgl/GraphicsRenderer buildline change: fixes #711 and #1620

filters might be an empty array

Add calls to super destructors and other extra cleanup work.

Merge remote-tracking branch 'upstream/dev' into gr-fixes

some jsdoc fixes; bit of cleanup

Merge pull request #2038 from mjhasbach/DisplayObject.setParent ...

Added DisplayObject.setParent

DisplayObject.setParent: Return the Container instead of the DisplayObject

fixes wrong jsdoc param name

Changed totalSegs in GraphicsRenderer buildCircle from 40 to a dynamic value that depends on the radius of the circle, see issue #1928

Add DisplayObject.setParent

Fix issue #1943 ...

Fix issue where cannot revert tint in Canvas Renderer https://github.com/pixijs/pixi.js/issues/1943

Fix issue #1943 ...

Fix issue where cannot revert tint on CanvasRenderer https://github.com/pixijs/pixi.js/issues/1943

Bugfix for arc, always use startX and startY as first point.

Fix bug #1999 ...

Fixed bug #1999 - RenderTexture.render() does not handle Martix when using CanvasRenderer

Revert "update mask transforms; fixes #1978" ...

This reverts commit c8244ed.

update mask transforms; fixes #1978

properly set dirty for cloned graphics; fix #2003

Rebased fixes for canvas masking/renderMode

hint free; checked out bin from upstream/dev

Merge pull request #1992 from bchevalier/particleContainerRefactor5 ...

[Enhancement] Improved performance of adding and removing particles

* Fixed doc

expose EventEmitter in utils

Update RenderTexture docs.