Moved buttonbar generation to its own partial.
No feed is loaded at startup, until the user clicks on one of the menu options in the sidebar.

When first loading the feeds view, some kind of landing page will be shown (for the moment it's just a placeholder text). No feed entries nor feed title are shown, and the buttons (refresh etc) are disabled. Only when the user clicks on one of the feeds in the sidebar the title will be shown, entries will be loaded (via Ajax) and buttons will be enabled.
Added "Add feed" button. Still non-functional.
Show a modal window with a form when clicking on the "Add feed" button.

The form is not yet functional.
Internationalize feed subscription popup buttons.
Updated Coveralls gem from 0.6.6 to 0.6.7
Changed an icon and strings for the add subscription functionality.
WIP: user can subscribe to new feeds.
WIP: user can subscribe to feeds.

Added method to Feed model that enables suscribing a user to a feed given its fetch URL; it works whether the feed is already in the database or not.
If user tries to subscribe to a feed he's already subscribed to, show a notice and do nothing.
Updated Bootstrap-sass from 2.3.1.0 to 2.3.1.1
Updated rspec-rails from 2.13.0 to 2.13.1
Change acceptance tests to reflect the fact that the fetch method of FeedClient (which must be stubbed during testing) is now a class-level, not instance-level method.
WIP: acceptance tests for the feeds sidebar.
Use the folder database id for the folder in the html, instead of generating a random id.
WIP: acceptance tests for navigating the folders in the sidebar.
WIP: acceptance tests for the folders in the feeds view. Added the possibility to read all entries for all subscribed feeds in a single list.
Every folder now contains a "Read all subscriptions" link that enables the user to read all feeds inside the folder in a single entries list.
Error messages displayed by Rails or by Devise close automatically after 5 seconds.
Text that indicates the time to automatically close alert messages is inside an <em>.

This helps differentiate between the timer and the actual alert text.