More progress on cipserver login for pv973 and a few fixes.

* Fixed the "options" module hotkey (changed boost walker to Ctrl+Shift+D).
* Fixed a small issue with UIMiniWindow:setup() function (was setting parent before its pos).
* Pic signature has changed for cipsoft client.
* Fixed 'client type' byte position in the login packet.
* Changed the ping function to execute every 4 seconds rather than 2.
* Changed some protocolgame for pv973 support.

modules/gamelib/const.lua

@@ -149,6 +149,9 @@ CIPSOFT_RSA = "1321277432058722840622950990822933849527763264961655079678763618"
 
 -- set to the latest Tibia.pic signature to make otclient compatible with official tibia
 PIC_SIGNATURE = 1337606793
+if g_game.getClientVersion() < 970 then
+  PIC_SIGNATURE = 1353074333
+end
 
 OsTypes = {
   Linux = 1,
@@ -162,7 +165,7 @@ OsTypes = {
 PathFindResults = {
   Ok = 0,
   Position = 1,
-  Impossipble = 2,
+  Impossible = 2,
   TooFar = 3,
   NoWay = 4
 }