Bug 862294 - Sidebar should be responsive in docked Toolbox, r=vporof
Bug 849071 - Create some kind of chrome to turn source mapping on/off in the debugger, r=vporof
Bug 862435 - Tilt doesn't open if the Inspector was opened beforehand, r=dtownsend
Bug 861783 - Removing watch expression of large object not possible via mouse, r=past
Bug 859308 - Hide Blocked in Timings tab until we know what that's doing, r=rcampbell
Bug 861487 - Sizes are displayed with non-localized decimal separator, r=rcampbell
Bug 862198 - Intermittent browser_net_json-long.js | Test timed out, found a tab, r=rcampbell
Merge m-c to inbound.
Backed out 3 changesets (bug 734691, bug 862500) for leaks.

Backed out changeset 4444510d672f (bug 862500)
Backed out changeset 5c321bc4dc63 (bug 734691)
Backed out changeset e045934f78be (bug 734691)
Bug 863025 - Fix nsUniversalDetector overlooking the UTF-16 BOM. r=smontagu
Bug 860827 - Add unit tests for ReadSysFile(). r=dhylands, r=BenWa