Remove --clear-modifiers flag

There is a bug in xdotool where --clear-modifiers can lead to the i3
$mod key getting stuck, see
jordansissel/xdotool#43

This means that instead of receiving e.g. <C-h>, vim will now receive
<C-M-h> (assuming i3 $mod is set to the alt key), so the keybindings in
the .vimrc need to be adapted accordingly

README.md

@@ -31,11 +31,13 @@ nnoremap <silent> <c-j> :call Focus('down', 'j')<CR>
 
 ```vim
 " i3 integration
-nnoremap <silent> <c-l> :call Focus('right', 'l')<CR>
-nnoremap <silent> <c-h> :call Focus('left', 'h')<CR>
-nnoremap <silent> <c-k> :call Focus('up', 'k')<CR>
-nnoremap <silent> <c-j> :call Focus('down', 'j')<CR>
+nnoremap <silent> <c-M-l> :call Focus('right', 'l')<CR>
+nnoremap <silent> <c-M-h> :call Focus('left', 'h')<CR>
+nnoremap <silent> <c-M-k> :call Focus('up', 'k')<CR>
+nnoremap <silent> <c-M-j> :call Focus('down', 'j')<CR>
 ```
+
+Assuming that i3 $mod is set to the alt key. 
 
 ## Binary
 

i3-vim-nav.go

@@ -20,7 +20,7 @@ func main() {
 	}
 
 	if windowIsVim() {
-		keycmd := exec.Command("xdotool", "key", "--clearmodifiers", "Escape+control+"+dir)
+		keycmd := exec.Command("xdotool", "key", "Escape+control+"+dir)
 		out, _ := keycmd.Output()
 		if len(out) > 0 {
 			fmt.Println(out)