Bug 804865 - Require Python 2.7 to build the tree; r=ted
Bug 818777 - Switch to NamedTemporaryFile from mozfile; r=ted

This version works with Windows.
Bug 818646 - Add mozbuild Python tests to |make check|; r=ted
Merge mozilla-central into build-system
Merge mozilla-central into build-system
Merge mozilla-central into build-system
Merge mozilla-central into build-system
Merge mozilla-central into build-system
Merge mozilla-central into build-system

--HG--
rename : content/html/content/public/nsHTMLCanvasElement.h => content/html/content/public/HTMLCanvasElement.h
rename : content/html/content/src/nsHTMLCanvasElement.cpp => content/html/content/src/HTMLCanvasElement.cpp
Bug 705371 - [CC] don't add JSContexts that have no children to the cycle collector graph, r=mccr8
Backout e4550612487b & c3008e662841 (bug 827274) for mochitest-chrome crashes on a CLOSED TREE
Bug 811527 - generate_diff.py does not ensure that m-c mirror of mozbase is internally compatible;r=jmaher ; follow-up, DONTBUILD because NPTOB
Added tag FIREFOX_AURORA_20_BASE for changeset 5bb309998e70
Merging in version bump NO BUG
Merge mozilla-central into build-system

--HG--
rename : browser/themes/gnomestripe/downloads/download-notification.png => browser/themes/gnomestripe/downloads/download-notification-start.png
rename : browser/themes/pinstripe/downloads/download-notification.png => browser/themes/pinstripe/downloads/download-notification-start.png
rename : browser/themes/winstripe/downloads/download-notification.png => browser/themes/winstripe/downloads/download-notification-start.png
merge m-c to alder