ProtectionAreas: Improved command help strings

git-svn-id: http://mc-server.googlecode.com/svn/trunk@1580 0a769ca7-a7f5-676a-18bf-c427514a06d6
ProtectionAreas: Added a license file.

git-svn-id: http://mc-server.googlecode.com/svn/trunk@1581 0a769ca7-a7f5-676a-18bf-c427514a06d6