restart on a remote command from the driver

This should be useful for ensuring that apps work the same after
restart.

live.lua

@@ -216,6 +216,8 @@ function live.run(buf)
   print('command is '..cmd)
   if cmd == 'QUIT' then
     love.event.quit(1)
+  elseif cmd == 'RESTART' then
+    restart()
   elseif cmd == 'MANIFEST' then
     Live.manifest[APP] = love.filesystem.getIdentity()  -- doesn't need to be persisted, but no harm if it does..
     live.send_to_driver(json.encode(Live.manifest))

main.lua

@@ -63,6 +63,13 @@ function love.quit()
   love.filesystem.write('config', json.encode(settings()))
 end
 
+function restart()
+  if on.quit then on.quit() end
+  love.filesystem.write('config', json.encode(settings()))
+  load_settings()
+  if on.initialize then on.initialize() end
+end
+
 function settings()
   local x, y, displayindex = App.screen.position()
   return {