Bar Detail Page - tweaks

[clearhythm]

A few tweaks to finish off Bar Detail page design implementation:

• Add address in to the page (either as clickable button or per YL's spec)
• Implement FB API login and JS fix to improve positioning of the background image as per MR's recommendation here: http://stackoverflow.com/questions/10393742/how-to-compute-facebook-graph-api-cover-offset-y-to-pixel
• Implement reply button so that it... a) Instead of just linking to the post detail page, it actually auto-triggers the comment toolbar and focused in textarea to draw up the keyboard b) If a user has commented, the "reply / comment" button is active color (pink) like likes