Added vim-commentary and updarted the plugins.

commentary:
Comment stuff out.  Use `gcc` to comment out a line (takes a count),
`gc` to comment out the target of a motion (for example, `gcap` to
comment out a paragraph), and `gc` in visual mode to comment out the
selection.  That's it.

sources_non_forked/syntastic/syntax_checkers/python/pyflakes.vim

@@ -45,6 +45,7 @@ function! SyntaxCheckers_python_pyflakes_GetLocList() dict
     let errorformat =
         \ '%E%f:%l: could not compile,'.
         \ '%-Z%p^,'.
+        \ '%E%f:%l:%c: %m,'.
         \ '%E%f:%l: %m,'.
         \ '%-G%.%#'