fixed even page issue in landscape and problem with cache where it owuld fail to write after clearing thumbnails and problem with thumbnails being generated and just random ones showing up.
Merge pull request #11 from thealch3m1st/master

Fixed a couple of issues
Modern syntax
Largish refactor

Replace XIBs with storyboards
Use collection view instead of page
Use autolayout.
Replace XIBs with storyboards
Use collection view instead of page
Better name for library controller.
Clean up image caching. Use cropbox
Page collection view
Renderer object instead of letting pages do own rendering