adding titles and summaries to social media share links
fixing indentation
fixing indentation
moving social media code from base.coffee into its own helper. Also bumping up line length from 120 to 130 in Gruntfile.coffee.
adding open graph tags
updating branch and adding open graph tags to all pages.
refactoring addOpenGraphTag method, populating description open graph tag with abstract from model
small change in title template
removing commented line
fixing indentation
fixing issue where description in og tags was undefined if abstract was null or undefined
replacing image for facebook
changes for open graph tgs
fixing indentaiton
moving og tag remove/append under one if block
Avoid name collision of  with data from archive
Merge pull request #708 from Connexions/avoid-name-collision-with-data

Avoid name collision of  with data from archive
Restore missing page/book toggle for the attribution tab
removing getAbstract method
replacing regex to get text from abstract