Unxfail bug 900905 tests
Unxfail bug 901475 tests
Unxfail bug 901479 tests
Merge pull request #1207 from zacc/unxfail_all_the_tests

Unxfail all the tests
Revert "Run stop b2g and start b2g with 'adb root' privs"

This reverts commit cedf51858c403f3b8c9db9ce76758a51617c8cd1.
Merge pull request #1211 from zacc/revert_root_privs

Revert "Run stop b2g and start b2g with 'adb root' privs"