conf
takes local app settings
syntax fix
fix logout anchor target url
Turned off auth alert in google_cb

For it is also called before the login popup window shows if without G+ cookie.
No IE support

IE just cached a `Cache-Control: no-cache` page.
And debugging the other IE-specific issues would be a waste of time.
Merge branch 'feature/local_app' into develop
Revert to old FB params

no FB cookie, better callback pattern
Merge branch 'develop'