Bug 858524 - Rename nsBarProp to BarProp, r=ms2ger

--HG--
rename : dom/base/nsBarProps.cpp => dom/base/BarProps.cpp
rename : dom/base/nsBarProps.h => dom/base/BarProps.h
Bug 858524 - Move BarProp objects to Paris bindings, r=ms2ger, r=smaug
Bug 863063: quitting private browsing mode does not delete partially downloaded files, r=mak
Bug 876208: only evaluate the preference for gfx.direct2d.* once, and require restart before any further changes to the preferences take effect in the code, r=bas
Bug 876217 - Update context app bar button state when content changes. r=bbondy
Bug 876408 - Remove Zoom buttons for v1.r=mbrubeck