Update games.yaml

1. Added Xenowar as a XCOM reimplementation alongside UfoAI.
2. Changed repo to url and put https://code.google.com/p/unflobtactical/source/browse/trunk as repo

games.yaml

@@ -2558,10 +2558,10 @@
           image: http://ufoai.ninex.info/wiki/images/thumb/Ufoai2.2_aircraft_team.jpg/120px-Ufoai2.2_aircraft_team.jpg
         - url: http://ufoai.ninex.info/wiki/images/Ufoaiold_base01.jpg
           image: http://ufoai.ninex.info/wiki/images/thumb/Ufoaiold_base01.jpg/120px-Ufoaiold_base01.jpg
-    - url: http://xenowar.net/
+    - url: https://code.google.com/p/unflobtactical/
       name: Xenowar 
       info: development halted, playable, C++
-      repo: https://code.google.com/p/unflobtactical/
+      repo: https://code.google.com/p/unflobtactical/source/browse/trunk
       added: 2014-11-26
       media:
         - image: http://xenowar.net/images/cap00.png