* Forms have been revamped (CSS + javascript),
* Process has been improved : errors are displayed on the form page,
* Some changes in the index.php page so that everything related to installation is in lib/setup.php
* Also added a small function in OC_HELPER class to set input values.

All these should improve the installation process in terms of ergonomics.
Well, I do hope so.

fancy upload button. does work with firefox (at least 4) and chromium, but not with Konqueror, Rekonq, Opera.

moved help from meta navigation to 'settings' (still need a good name for it). Also, even more hip new mono icons

Start of the refactoring. Commit is quite big because I forgot to use git right from the beginning. Sorry.

new settings page that allows plugins to integrate their own settings dialogs more with the existing ones

This is made using em unit instead of pt for font-size.
"New" sizes are relative to the font-size choosen by the user.

Changed 9pt in 0.95em, 8pt in 0.8em and 7pt in 0.7em, tested on Firefox. This should fix zoom in/out in IE.