added green mail test dependency,

also added config param for smtp port and host for test purpose
started to rework the tests to use green mail and verify mail sending,
not finished yet
changed integration tests to use green mail and verifying incoming mails
Merge pull request #71 from jtodea/mailServerConfig

Mail server config
[fix] removed useless test
[cleanup] removed useless and wrong java doc
[cleanup] switching from GStrings to regular strings
[fix] fixed db seeds to reflect latest database schema