Fixed oauth redirect url path. URL works with nested pathnames.
Merge pull request #532 from Antek-drzewiecki/oauth_redirect_url_fix

Fixed oauth redirect url path. URL works with nested pathnames.
Moved reference to throbber.gif to CSS file.
Fix potential self XSS in request url.
Merge pull request #541 from STRML/master

Fix self XSS in request url.
Merge pull request #540 from bezhermoso/throbber_img_reference

Moved reference to throbber.gif to CSS file.