add tetris attack

games.yaml

@@ -771,6 +771,15 @@
           url: http://www.siedler25.org/gallery/2011/2011.01.19_10.jpg
 
 
+- name: Tetris Attack
+  clones:
+    - url: https://github.com/sharpobject/panel-attack
+      name: Panel Attack
+      repo: https://github.com/sharpobject/panel-attack
+      info: active development, Lua, playable, basic networking support
+      added: 2013-05-27
+
+
 - name: Theme Hospital
   clones:
     - url: http://code.google.com/p/corsix-th/