More improvements.

- Grouped various images into a single file.
- When postList scrollbar goes to the bottom, more posts are loaded.
- Show/hide favicons in the feedlist.
- Updated MVCious Config.php file.
- Fixed booleans loaded from database.
- Updated database.
- Updated styles.
More improvements.

- Fixed the remember login problem.
- Added minifier for HTML, CSS and JS.
- Added folders to the list of feeds and sorting possibility.
- Moved the javascript files to the bottom of the views.
- Various bugfixes.
- Updated database.
Fixing the feedlist and more.

- Fixed the 'read' and 'unread' counters of the posts.
- When changing from one feed to another, the 'selected-feed' class was kept when a post was readed.
- Fixed a problem when moving a feed after creating a folder.
- Fixed some otros problems caused by the new folder system.
- Fixed a possible 'session alredy started'.
- Recovered update_feed_name function from connections model that was lost in the last commit.
- Updated base (MVCious).
A few changes in the feed updating system.

- Moved updating system controllers to another file.
- Fixed issues when adding non UTF-8 posts to the database.
- Feeds with different response than 200 (OK) are automatically disabled.
- If a feed has a 3xx response, updates the url in the database.
- Updated framework.
- Updated database.
Completed the last update.
Updated framework, commented code and fixed some errors.

- Updated the search engine.
- Fixed the wrong position of the feed when is added.
- Splitted the Connections model in three files (connections, configuration and updater).
- Splitted the Rssreader controller in three files (rssreader, feeds and posts).
- Separated the Feed_to_user() function from Insert_feed().
- Moved the Logout function out of the Login controller.
- Translated the welcome text.
- Fixed the images resizing in handheld.css.
- Updated database file.
- Adapted to the PHP coding standards... (more or less)
- FINALLY the code is commented!!!
- Updated MVCious framework.
- Added a license file (Apache 2.0).