Bug #3780 : max length limitations around specific user values
- adding max length handling on database domain table creation (SP and SQL domains only)
- adding tools to retrieve property max length
- modifying the display of extra user informations in user profile
- modifying the display of user informations in back-office
- wiring the max length handling with user csv import functionality in back-office

Conflicts:

	war-core/src/main/webapp/socialNetwork/jsp/myProfil/myProfile.jsp
integrating bug #3780
fixing two minor bugs too :
- breadcrumb was not displayed on 'user creation' screen
- javascript message was incomplete when login is to short