title: VIM + Syntastic: how to disable the checker?
body: <p>I'm using Syntastic which is enabled for my HTML files. Since I have a very big file with "validator w3" checkers enabled, GVIM or VIM became very slow while saving the file (:w).</p>
  
  <p>Is it possible to toggle syntastic off temporally just for the current session?</p>