Adding protocol handler
make protocol handler work for Chrome
adding new route to compose a new message based on protocol handler
correctly position account dropdown
center compose window
only show account switcher when there are multiple accounts
show cc and bcc in case one is set
show sent notification and display buttons to navigate back or to the mail app
make contact suggestions working on mailto: links
clarify back button 'to website'
also slide away attachments display after mail sending
Merge pull request #207 from owncloud/protocol-handler

Adding protocol handler