Improve keygrabber exit (#31)

* Default to "q" after "Escape" for exit_key

* Abort keygrabber with Ctrl-C always

init.lua

@@ -681,8 +681,11 @@ cyclefocus.cycle = function(startdirection_or_args, args)
     -- Use "Escape" as exit_key if not used as key.
     local exit_key = args.exit_key
     if exit_key == nil then
-        if not awful.util.table.hasitem(keys, 'Escape') then
-            exit_key = 'Escape'
+        for _,key in pairs({'Escape', 'q'}) do
+            if not awful.util.table.hasitem(keys, key) then
+                exit_key = key
+                break
+            end
         end
     end
 
@@ -890,6 +893,9 @@ cyclefocus.cycle = function(startdirection_or_args, args)
 
         if exit_key and key == exit_key then
             return exit_grabber(initiating_client)
+        elseif #mod == 1 and mod[1] == 'Control' and key == 'c' then
+            -- exit on Ctrl-C always.
+            return exit_grabber(initiating_client)
         end
 
         -- Direction (forward/backward) is determined by status of shift.