Bug 1066888 - Overscroll physics improvements. r=kats

This patch unifies the physics governing the overscroll phase of a fling
with the snap-back animation. The unified physics are spring-based, like the
physics governing the snap-back animation before, except we allow for
oscillations.
Bug 1066888 - Update gtests for overscroll physics improvements. r=kats
Bug 1089031 - Remove invalid mochitests and adding them to support-files in dom/encoding/test/mochitest.ini. r=jmaher
Bug 1090205 - Move getReversedHost from Bookmarks.jsm to PlacesUtils. r=mak
Bug 1087633, Filter out XPConnect wrapped input streams, r=bz

--HG--
extra : rebase_source : a33654c249bc60464fe3c1a372dee0f58ee465c7