Merge m-i to m-c

Makefile.in

accessible/jsat/AccessFu.jsm

accessible/jsat/OutputGenerator.jsm

accessible/jsat/Presentation.jsm

accessible/jsat/Utils.jsm

accessible/tests/mochitest/jsat/jsatcommon.js

accessible/tests/mochitest/jsat/output.js

accessible/tests/mochitest/jsat/test_alive.html

...ssible/tests/mochitest/jsat/test_content_integration.html

accessible/tests/mochitest/jsat/test_content_text.html

accessible/tests/mochitest/jsat/test_explicit_names.html

accessible/tests/mochitest/jsat/test_landmarks.html

accessible/tests/mochitest/jsat/test_live_regions.html

accessible/tests/mochitest/jsat/test_output.html

accessible/tests/mochitest/jsat/test_tables.html

b2g/app.mozbuild

b2g/dev/app.mozbuild

b2g/installer/Makefile.in

browser/app.mozbuild

browser/app/Makefile.in