EUCA-3704
enabled xsrf token for login and changepassword
Merge branch 'maint/3.4/testing' into EUCA-3704
EUCA-3704
added xsrf token change when login or changepassword performed, fixed changepassword bug by not replacing user session if it already exists.
EUCA-3704
renew session-id on password change
EUCA-3704
resolved merge conflict
Merge pull request #221 from eucalyptus/EUCA-3704

EUCA-3704