fix nc branding

.github/CONTRIBUTING.md

.github/issue_template.md

.travis.yml

README.md

appinfo/info.xml

bower.json

js/README.md

js/controller/aliasescontroller.js

js/models/alias.js

js/models/aliasescollection.js

js/service/aliasesservice.js

js/views/accountsettings.js

js/views/aliases-list.js

js/views/aliases.js

l10n/.tx/config

lib/db/alias.php

lib/db/aliasmapper.php

lib/service/aliasesservice.php

package.json

screenshots/mail.png