stop vimperator messages from fading out

After fade-out, a gap is still left in front of the status text, which only
disappears after pressing <Esc>, so there is no point having the fade out, and
having to press escape to return the status bar to normal anyway.

vimperator/vimperatorrc

@@ -9,6 +9,9 @@ colorscheme cinaeco
 " don't focus on inputs/textfields when we navigate to a page
 set focuscontent
 
+" don't fade out messages, instead just <Esc> to clear
+set messagetimeout=-1
+
 
 """"""""""""""""""""""""
 " Mappings