Merging in version bump NO BUG
Added tag FIREFOX_AURORA_23_BASE for changeset d7ce90899997
Bug 871594 - Replace references to BookmarksMenuButton with BookmarkingUI in browser-places.js. r=trivial.
Merge m-c to inbound.
Bug 871315 - Fix some rooting hazards in content/; r=till,bzbarsky
Bug 871315 followup - Remove the unused rootedNull local variable