Merge pull request #181 from MIT-Mobile/3.6/dev-intrepid-svoigt

3.6/dev intrepid svoigt
Added temporary iphone 6 launch image to turn off screen scaling for testing
Created Libraries module style categories
Cleanup launch image addition
Created Libraries Item cells, skeleton Your Account VC and account-specific Item cells
Merge pull request #182 from MIT-Mobile/3.6/ross-your-account

3.6/ross your account
Changed library items' year string to return first item in the array, per instruction
Libraries Home VC
Merge pull request #186 from MIT-Mobile/3.6/ross-libraries-home

3.6/ross libraries home
Renamed LibariesItem to WorldcatItem