Move addUser to UserService.
Move getUser to UserService.
Move modifyUser to UserService.
Move deleteUser to UserService.
added todo
Simplify getUsersApplications and remove unused variables.
More cleanup in UserResource.
Move addUserToLdap from UserService to UserAuthenticationService.java
Improve logging in addWhydahUserIdentity in LDAPHelper.
New test: testAddUserToLdap
Make UserAuthenticationServiceTest run on special port.