Merge pull request #353 from jasl/bootstrap-3-1

upgrade to bootstrap 3.1
Merge pull request #352 from jasl/fix-test-authorize-link

fix test authorize link with multi-redirect-urls
test redirect_uri use urn:ietf:wg:oauth:2.0:oob:test
add specified callback urn for native apps
check i18n can respond enforce_available_locales