* Allow for multiple default values. Also add a generic flag in ldap attrmap. If...

* Allow for multiple default values. Also add a generic flag in ldap attrmap. If it exists then the
  attribute is generic and user values *do not* overwrite default values. The operators in the generic
  attribute can be used for that. The same is very difficult to implement for sql, so for now user
  values overwrite default values in sql (user edit page).
  A lot of code and a lot of files where changed so there may be bugs somewhere.