When loading the feed index view, the number of unread entries is displayed besides each feed and folder.
Better organization of the support macros for acceptance tests. They have been moved to a subfolder and separated in two files:

- one for the pass/fail tests (user should be logged in, email should be sent, etc)
- another one for user macros (open folder, read feed, etc)
Created a new test support macro to automate adding a feed to a new folder during acceptance testing. Modified existing tests to take advantage of this macro.
Divided the coffeescript file with folder management functions in two files: one for functions that add a feed to a folder, and another one for functions that remove a feed from a folder.