Description of problem:

Timestamp value returned by user.getLoggedInTime is not timestamped and thus is useless.

Version-Release number of selected component (if applicable):


How reproducible: allways/deterministic


Steps to Reproduce:
1. Run the following script parametrized by hostname of your Spacewalk:

    #!/usr/bin/env python
    import xmlrpclib
    import sys 
    
    USER = "admin"
    PASS = "nimda"
    SERVER = "http://%s/rpc/api" % sys.argv[1]
    
    client = xmlrpclib.Server(SERVER, verbose=0)
    client2 = xmlrpclib.Server(SERVER, verbose=1)
    
    key = client.auth.login(USER, PASS)
    client2.user.getLoggedInTime(key, "admin")
    client.auth.logout(key)

Actual results:

Response body contains something like

    <dateTime.iso8601>20150719T09:54:46</dateTime.iso8601>

(Which in case you are not in the same timezone as a server, is not exactly useful.)

Expected results: Timezoned value

Additional info:

* ISO 8601 allows use of timezone
* possible workaround is using user.getDetails which return struct with field
  last_login_date. That is string formatted in the following way:
     user never logged in: ""
     otherwise: example "7/3/15 4:41:06 AM EDT" (that is not a ISO 8601
     but might be parsable just ok)
* Why not deprecate user.getLoggedInTime?