Bug 891968 - Only have one copy of each overriding UA string. f=hurley r=jduell
Bug 893061 - Prevent the default homepage from loading if we're going to restore a session; r=dao
Bug 851454 - Define the format of "downloads.json" and of the parameters of createDownload. r=enn
Bug 836437 - Part 1 of 3 - Unify DownloadLegacy tests in preparation for resuming support. r=enn

--HG--
rename : toolkit/components/jsdownloads/test/unit/test_DownloadCore.js => toolkit/components/jsdownloads/test/unit/common_test_Download.js
Merge m-c to fx-team.