Merge pull request #662 from tschneidereit/master

Change all internal bounds calculations to use { xMin, yMin, xMax, yMax } objects instead of flash.geom.Rectangle instances
Adds a more advanced FPS monitor.
Merge
Merge pull request #663 from mbebenita/fps

Adds a more advanced FPS monitor.
Various fixes to e4x qualified identifier references
Fix lint failure
Merge pull request #666 from artcompiler/lint

Fix lint failure
Merge pull request #665 from artcompiler/e4x

Various fixes to e4x qualified identifier and toXMLString()
Dock fps panel to top of stage area. HiDPI support.
Create less objects and reduce recursion in the quad tree.
Optimize quad tree visualization.
Speed up invalidation for SWFs with lots of moving content.
Merge pull request #668 from tobeytailor/quadtree

Quad tree related performance and memory consumption optimizations
Fix E4X x.@* refeferences
Handle the case of null namespaces in accessor api
Merge pull request #669 from artcompiler/e4x

Fix E4X x.@* references
only include mouse visitor in fps display when frame is rendered
use performance.now() for time measurement
makes fps panel behave exactly like scout, optimizations, some refactoring, etc
Merge pull request #667 from claus/inspector

Inspector: FPS panel improvements