* Add Tests.
* Change License text to GPL-3
v0.0.5
* add change_attributes method to edit QMRF 6.1-6.4 and 7.1-7.4
* fix catalog referencing code, adjust node search
v0.0.2
* add QPRF reporting
* rename gem qmrf-report to qsar-report
v0.0.1
* initial version