merge mozilla-central to autoland. r=merge a=merge

accessible/generic/DocAccessible.cpp

accessible/tests/browser/e10s/browser_treeupdate_ariaowns.js

accessible/tests/browser/tree/browser_test_aria_owns.js

accessible/tests/mochitest/treeupdate/test_ariaowns.html

browser/base/content/browser-places.js

browser/components/downloads/DownloadsCommon.jsm

browser/components/downloads/DownloadsViewUI.jsm

...r/components/downloads/content/allDownloadsViewOverlay.js

browser/components/downloads/content/downloads.js

browser/components/places/content/places.js

...ponents/places/tests/browser/browser_library_downloads.js

browser/installer/windows/nsis/defines.nsi.in

browser/installer/windows/nsis/stub.nsi

browser/locales/en-US/installer/nsisstrings.properties

...er/modules/test/browser/browser_UsageTelemetry_content.js

.../test/browser/browser_UsageTelemetry_content_aboutHome.js

.../modules/test/browser/browser_UsageTelemetry_searchbar.js

...ser/modules/test/browser/browser_UsageTelemetry_urlbar.js

build/moz.configure/old.configure

build/moz.configure/toolchain.configure