Added setting permissions

You should just do:

permissionObject.manageRoles = true;

for example rather than messing with setBit.

lib/ServerPermissions.js

@@ -52,10 +52,11 @@ var ServerPermissions = (function () {
 
 		if (value) {
 			// allow that permission
-
+			this.packed |= 1 << location;
 		} else {
-				// not allowed
-			}
+			// not allowed
+			this.packed &= 1 << location;
+		}
 	};
 
 	ServerPermissions.prototype.toString = function toString() {