Implement sessions management
Move 'author' Resource attribute from ResourceStore to view.
Add feature to delete files.
Add re-render for resource models on the 'change' event.
Cherry-pick
Throw error for ResourceStore#update
Use Q.then for resolving success/error callbacks in ResourceStore
Remove redundant method in SharedListView
Merge pull request #15 from rymdjs/feature/login-sessions

Sessions management
Merge pull request #16 from rymdjs/feature/delete-files

Delete files
Separate local files and shared files collection
Merge branch 'develop' of github.com:rymdjs/prototype into develop
Release 0.1.1