Update Gaia API documents for #d1e834d97f0e14de3f0c5723251f1ef34f38fb23
    Adding email keyboard test.

Conflicts:
	tests/python/gaia-ui-tests/gaiatest/tests/functional/keyboard/manifest.ini

Conflicts:
	tests/python/gaia-ui-tests/gaiatest/apps/ui_tests/regions/keyboard.py