shiro integrated
template for (single) book
some of the backend management for sessions and books
some of the streaming mp3 service
basic book view/form page is more interactive
updates to tracks to help them get handled better (now the file name is stored by the application and the path to the file never changes)
updates to site look and feel
switched from ngRouter to ui.router in order to handle new sessions and items better
overall improvements
further movement on the file upload controller (tracks are added and streams are made available, the files aren't written yet)
updated comment