Cassandra iteration and login
Cassandra iteration and login

* Implemented login options - ?username=xxx&password=xxx
* Implemented query(), which returns a iterator function:
      var iter = cassandra.query(...);
      iter().then(function(value) { if(value) { /* process the value */ }});

nyurik/kartotherian,nyurik/kartotherian,nyurik/kartotherian,kartotherian/kartotherian,kartotherian/kartotherian,nyurik/kartotherian,kartotherian/kartotherian,kartotherian/kartotherian