2.0.1

SimpleRandomNumber v2.0:
* Added permissions
* Added configuration
* Added /srn setmin <defaultmin> - 'srn.admin' permission needed
* Added /srn setmin <defaultmax> - 'srn.admin' permission needed
* Added /srn reload - 'srn.admin' permission needed.
* Changed default broadcast message slightly
* Added /srn alias
* Code cleanup