some more places avoiding 'push'
some minor module configuration changes
more IDEA module changes
added unit test module to IDEA project
TextureAtlas now always returns the same SubTexture instances

Since SubTextures are immutable, there's no need to create a new one on each access.
(This has not always been the case.)
AssetManager now processes atlas- and font-XMLs in separate steps

Previously, if you had many/big such XMLs, the final process step could take a while, because all XMLs were processed in one frame. Now, each XML is one "onProgress" call, with one frame inbetween.
small fix in IDEA module
changed module groups in IDEA project
removed 'inline' metadata because it causes a runtime error
added 'soundTransform' property to MovieClip (closes #607)
fixed copy/paste error
removed superfluous colons in asdoc '@param' declarations
added 'setQuad' method to QuadBatch class
removed obsolete hellper object
Merge remote-tracking branch 'upstream/master'