minor changes.
Merge branch 'master' of https://github.com/proxi24be/proxi24be

Conflicts:
	protected/apis/GenerateHtml.php
	protected/controllers/SiteController.php
new extension : form helper for bootstrap and activeform.
removing a redundant parameters in FormBehavior.
The factory clas can now generate dropdown box.
Now it is possible to change the attribute behavior at the runtime.
adding some comments.
adding the event afterConstruct.
schema internalization tables.
creation of i18n and authenticate modules.
change of method name of AttributeFormBehavior.
adding folder css.
modifing redundant file.
creation of additional folders/class.
removing of obsolete files + changing of some paths for using the
extension for bootstrap.
Use of php files for the translation + adding a new module "authenticate"