Add support for two factor authentication

What steps will reproduce the problem?
1. Put user email in user_config.py. Use one with enabled 2FA.
2. Run gcj_init_contest.py.
3. Enter correct password.

What is the expected output?
Prompt to enter 6-digit 2FA time/sms code.

What do you see instead?
Traceback (most recent call last):
  File "gcj\gcj_renew_login.py", line 79, in <module>
    main()
  File "gcj\gcj_renew_login.py", line 61, in main
    code_jam_login.Login(options.password)
  File "gcj\lib\code_jam_login.py", line 306, in Login
    _, cookie = MakeLogin(host, user, password)
  File "gcj\lib\code_jam_login.py", line 160, in MakeLogin
    host, 'HOSTED_OR_GOOGLE', user, password, 'ah', application_name, False)
  File "gcj\lib\google_login.py", line 199, in Login
    source)
  File "gcj\lib\google_login.py", line 125, in _GetGoogleAuthtoken
    e.headers, response_dict)
  File "gcj\lib\google_login.py", line 38, in __init__
    self.reason = args["Error"]
AttributeError: can't set attribute

What version of the product are you using? On what operating system?
1.2-beta1, win7 x64

Workaround.
Currently we have to use application-specific password for codejam-commandline, 
https://accounts.google.com/b/0/IssuedAuthSubTokens?hide_authsub=1.

Original issue reported on code.google.com by jan.kill...@gmail.com on 16 Apr 2014 at 4:57

UbuntuEvangelist / codejam-commandline

Add support for two factor authentication #29