licensing update

Signed-off-by: Adrian-Tudor Panescu <adrian@panescu.com>
fixes

* January is month 1;
* Throws Errors on constructor issues;
* Invalid datetime format is now longer ignored.

Signed-off-by: Adrian-Tudor Panescu <adrian@panescu.com>
updates grunt-contrib-jshint dev dependency

Signed-off-by: Adrian-Tudor Panescu <adrian@panescu.com>
coveralls.io first try

Signed-off-by: Adrian-Tudor Panescu <adrian@panescu.com>