Added social-share-button files
Added angularjs-socialshare js and css
Removed unnecessary bower files
Revert "Added social-share-button files"

This reverts commit ec932a0002965ac8572033a34ab80d1ee05d57a0.
Added viewhead module
Added view-specific meta tags
Added a view-head attribute to the item title. Added the new image type parameter to the updateImage function. Added the facebook share button and made it display: none until testing can be completed.
Added viewhead as a dependency to the Directory
Added angular-socialshare to the Items controllers dependencies and added the facebook init function
Changed the updateImage function to accept a parameter for either the thumb or the full image
Added the angular-socialshare CSS and removed the share count bubble
Changed the site title to take the viewhead title if available, and added an og tag for the site name
Changed the container for the 2-min transcript preview to an info alert
Added text for when a premium transcript is processing. Put the error text in a p element.
store app ids in env vars
Moved the viewhead js and socialshare js to the vendor assets
Changed FB function syntax to fix assets compiling error
Changed the updateImage function to get the thumb version unless 'full' is specified as a parameter
Removed console log