update .ini
Added an option to display a checkbox for terms of use.
Moved some files for a better theming, in accordance to Zend.
Adapted paths according to the previous commit.
Cleaned whitespaces and line endings.

Conflicts:
	CommentingPlugin.php
Normalized spaces before/after parenthesis and other symbols.
Replaced the static method by a specific hook to allow to add comments on any page and for any record.