Configuration and implementation to allow the users to request the
deletion of their account if they don't accept the disclaimer or in
their settings under the disclaimers.

OO-2172: refactor the spring configuration to be more Spring 4 friendly, remove the cycle generate by the properties injection, deployment of course and user in a separate module

OO-1362: make the guest login, links for guests and invitation login configurable in the administration GUI

OO-1068:  bootstrapify the stepped wizard and the legacy wizard with a style based on the very good Fuel UX wizard

OO-798, OO-797, OO-796: update the webdav implementation based on Tomcat, make OpenOLAt work under root context, small refactoring of the dispatchers, push raw files dispatcher to its own servlet, implements Digest authentication...

OO-451: set the language just after the authentication and the login interceptors controller will use the user's prefered language.

NEW default theme for OpenOLAT
----------------------------------------------

- remove old "default"
- minor markup changes in velocity templates
- minor markup changes in JavaClasses (add css-classes to components)
- new iconset
- update yaml
- new theme:  "openolat"
- theme.readme
- ignore sass-cache

--HG--
branch : bps