chore(update) add info about exec dir

lib/server/update.js

@@ -57,6 +57,7 @@
             };
         } else
             lExec = 'install git to get auto updates (works for cloned version)\n' +
+                    'or start cloudcmd from root of Cloud Commander dir\n'          +
                     'git clone http://github.com/coderaiser/cloudcmd';
         
         Util.log(lExec);