[fix] saves auth token instead of password. Fixes #371 and #302
[api] use own jitsu token, remove password at login
[api] require jitsu load to request token and save it to .jitsuconf but not the password
[fix] removed redundant config save
[api] retrieval of tokens and password clearing for edge cases
[fix] json name
[test] updated test to reflect making a call to retrieve token for the session
[api] removes 'api-token' on logout
Merge pull request #382 from nodejitsu/gh-371

[fix] saves auth token instead of password. Fixes #371 and #302