Merge pull request #225 from MIT-Mobile/3.6/ross-blc-holdings

BLC Holdings screen implemented
Refactored citation cells to use nsattributedstring new HTML data initializer. Also added base iOS sharing functionality
Merge pull request #227 from MIT-Mobile/3.6/ross-citations-attributed

Refactored citation cells to use nsattributedstring new HTML data initia...
Fixed issue with incomplete sign in causing crash
Fixed cell sizing issue on iOS 7
Basic setup of iPad libraries
Basic setup of your account ipad list view
Implemented locations and hours popup (waiting on webservice for library coords)
Merge pull request #230 from MIT-Mobile/3.6/dev-intrepid-svoigt

3.6/dev intrepid svoigt
Changed Shuttle bus annotation view to use sublayers instead of subviews due to ios 8 mkannotationview subview bug