Fix indentation in previous checkin.  No bug, r=me
Bug 905312 - Make monospace font consistent across devtools; r=paul
Bug 904201 - Add error message for "noSuchActor". r=bbenvie
Bug 904953: Request longer timeout for markup edit test r=mratcliffe
Merge m-c to fx-team.
Bug 747428 - Set additional webapp metadata for use by Windows' uninstall widget. r=tabraldes
Bug 747552 - During webapp install, icon retrieval may return non-image files. r=myk
Bug 899353 - Show progress while downloading webapps. r=felipc
Bug 907324 - Fix regression from bug 776446. Menu separator in a popupset creates a weird statusbar. r=myk
Bug 908457 - Remove duplicate entry from Makefile.in. r=mleibovic
Bug 765288 - Annotate user agent locale in crash report. r=ted
Bug 874425 - Ensure that we never return an negative duration. r=froydnj
Bug 909341 - Uplift Addon SDK to Firefox. r=me
bug 905297 fix error page handling for social panels, r=markh
Backed out 4 changesets (bug 747428, bug 907324, bug 899353, bug 747552) for mochitest-other assertions.

Backed out changeset ee2bf84036fb (bug 907324)
Backed out changeset 17f932a5856d (bug 899353)
Backed out changeset b277e7b08f88 (bug 747552)
Backed out changeset 6ae3b1195542 (bug 747428)
Bug 865387 - Changes to |options| and |clone| in OS.File. r=Yoric
Bug 865387 - Handle the read-ahead flag operation on Linux. r=Yoric
Bug 908179 - Adjust text in about flyout for clearer localization. r=mbrubeck
Bug 885717 - Use a property animator for button toast. r=lucasr
Bug 883608 - Add 'datetime' to list of supported inputs. r=mfinkle