Add additional p4 commands, files and describe

Author: RecklessWave

index.js

@@ -386,7 +386,7 @@ NodeP4.prototype.users = function (options, callback)
 };
 
 var commonCommands = ['add', 'delete', 'edit', 'revert', 'sync', 'diff', 'reconcile', 'reopen', 'resolved',
-                      'shelve', 'unshelve', 'client', 'resolve', 'submit'];
+                      'shelve', 'unshelve', 'client', 'resolve', 'submit', 'describe', 'files'];
 
 commonCommands.forEach(function (command)
 {
@@ -396,4 +396,4 @@ commonCommands.forEach(function (command)
   };
 });
 
-module.exports = new NodeP4();
+module.exports = new NodeP4();