Include Version info in request to API.

OGP/ogp_agent.pl

@@ -1870,7 +1870,7 @@ sub fetch_steam_version
 	
 	logger "Getting latest version info for AppId $appId";
 	
-	$ua->agent('OGP Windows Agent');
+	$ua->agent('OGP Windows Agent v/' . AGENT_VERSION);
 	$ua->timeout(10);
 	
 	my $response = $ua->get("http://opengamepanel.org/supported_games/api.php?appid=$appId&action=getBuildId");