Bug 851156 (part 1) - Clean Metro strings for button and menu labels [r=jimm]
Bug 851156 (part 2) - Clean up unused strings in Metro locale files [r=jimm]
Bug 851156 (part 3) - Clean up Metro password manager strings [r=jimm]

--HG--
rename : browser/metro/locales/en-US/overrides/passwordmgr.properties => browser/metro/locales/en-US/chrome/passwordmgr.properties
Bug 845096 - Clean up Metro sync strings [r=jimm]
Bug 840690 - Improve handling of relative paths when running mach in subdirectories [r=gps]