* 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.

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

fixes http://bugs.kde.org/show_bug.cgi?id=264295

in the (rare) case that there are unreadable files show an error since it's probably a case of incorrect premissions set by someone.

the callBack class becomes obsolete with these but all places where it is used are updates

fixes https://bugs.kde.org/show_bug.cgi?id=259616

Seems we don't really need this, since calling e.g. fileActions['audio/x-wav'] is no problem. It should be also more clear to use and read than e.g. fileActions.audioxwav

replaced fileActions[this.mime] by fileActions[this.mime1 + this.mime2], since an object name cannot contain slashes. (correct me if I'm wrong)

Patch by Romain GRENIER

bug fix when starting multiply uploads while the old ones arent finsihed, detect file actions on mimetype not on extention