Merge pull request #164 from delianides/master

flow linting should only happen on flow typed files.

ale_linters/javascript/flow.vim

@@ -21,7 +21,7 @@ endfunction
 
 function! ale_linters#javascript#flow#GetCommand(buffer) abort
   return ale_linters#javascript#flow#GetExecutable(a:buffer)
-  \   . ' check-contents --json --from ale'
+  \   . ' check-contents --respect-pragma --json --from ale'
 endfunction
 
 function! ale_linters#javascript#flow#Handle(buffer, lines)