fix test_p2p on Windows

tests/test_p2p.py

@@ -62,7 +62,7 @@ class RunProcessInThread(threading.Thread):
     # Wait for thread to shutdown.  Nuke process if we don't exit in time
     def join( self, timeout ):
         threading.Thread.join( self, timeout )
-        if self.isAlive():
+        if self.is_alive():
             self.WriteLn( "Still running after %d seconds.  Killing" % timeout )
             global g_failed
             g_failed = True
@@ -90,7 +90,7 @@ def StartClientInThread( role, local, remote ):
     ]
 
     env = dict( os.environ )
-    if os.name == 'nt' and not os.path.exists( 'steamnetworkingsockets.dll' ):
+    if os.name == 'nt' and not os.path.exists( 'steamnetworkingsockets.dll' ) and not os.path.exists( 'GameNetworkingSockets.dll' ):
         bindir = os.path.abspath('../../../bin')
         if not os.path.exists( bindir ):
             print( "Can't find steamnetworkingsockets.dll" )