Test that checks adding a new tab to a browser.
Test opening a new tab in the browser.
Merge branch 'desktop' of https://github.com/mozilla/gaia-ui-tests.git into test-browser-new-tab

Conflicts:
	gaiatest/apps/browser/app.py
	gaiatest/tests/browser/manifest.ini
Removed tearDown() method and fixed typo
pep8 fixes
Merge branch 'master' into test-browser-new-tab
Merge branch 'master' of https://github.com/mozilla/gaia-ui-tests.git into test-browser-new-tab

Conflicts:
	gaiatest/tests/browser/manifest.ini
Replaced sleep with wait
Added break
Changed class name
Improved waits in test_clock_switch_clock_type. Fixes issue #486
Merge pull request #542 from teodosia/test-browser-new-tab

Test browser new tab
Merge remote-tracking branch 'mozilla/master' into issue_475
updated according to CR