Made .bat file dynamically created again since it requires an absolute path.

bin/windows/evennia.bat

@@ -1 +0,0 @@
-@"python" "evennia.py" %*

bin/windows/evennia.py

@@ -1,6 +1,7 @@
-#! /usr/bin/python2.7
 """
-Linux launcher
+Windows launcher. This is called by a dynamically created .bat file in
+the python bin directory and makes the 'evennia' program available on
+the command %path%.
 """
 
 import os, sys