This belongs to the OAuth Epic: #4004 - please read this for the big picture of what this issue is for :)

To allow a registered client to authenticate a user it is necessary to implement a special login page.

URL:
/ghost/authorize

Flow:

• Client redirects the user to /ghost/authorize
• Information about the application is displayed (including client permissions)
• User inserts username and password and confirms
• Ghost redirects back to the client application

This issue will need some design guidance from @JohnONolan :).

Examples from other services can be found on the hello.js website by klicking on the third party service icons (http://adodson.com/hello.js/#hellojs).

I'm uncertain how this could fit into our Ember admin? Any opinions from our ember savvy ppl are very appreciated.