Get foreground window 30% faster

Thanks micampe!

modules/notify/functions/focused_window_id

@@ -6,12 +6,8 @@
 
 case "$OSTYPE" in
   (darwin*)
-    osascript -e 'tell application "System Events" to ¬' \
-              -e '  set focus_app_name to ¬' \
-              -e '    name of first application process ¬' \
-              -e '    whose frontmost is true' \
-              -e 'tell application focus_app_name to ¬' \
-              -e '  get id of front window'
+    osascript -e 'tell application (path to frontmost application as text) ¬' \
+              -e '  to get id of front window'
     ;;
   (linux-gnu*)
     # http://stackoverflow.com/a/8688624/447288