BGE panels: wip

Logic Panel:
- world settings (moved from world)
 ... that includes physic engine selection + gravity
- game player (from gamesettings, it wasn't wrapped)
- stereo/dome (from gamesettings, it wasn't wrapped)
 ... separated stereom into stereoflag and stereomode
- properties
 ... (didn't touch it)

Buttons Game Panel:
(wip panel)
- Physics (moved from Logic Panel)
 ... it will be a datablock in the future (right Campbell ?)
- Material Physics (not currently implemented)
 ... a datablock link to the materials of an object + the dynamic physic variables

* NOTE:
in readfile.c::do_version I couldn't do if(scene->world). There is something wrong with scenes with an unlinked world. So so far we are ignoring the old values....

source/gameengine/GamePlayer/ghost/GPG_Application.cpp

@@ -700,8 +700,8 @@ bool GPG_Application::startEngine(void)
 #endif
 
 		//initialize Dome Settings
-		if(m_startScene->r.stereomode == RAS_IRasterizer::RAS_STEREO_DOME)
-			m_ketsjiengine->InitDome(m_startScene->r.domeres, m_startScene->r.domemode, m_startScene->r.domeangle, m_startScene->r.domeresbuf, m_startScene->r.dometilt, m_startScene->r.dometext);
+		if(m_startScene->gm.stereoflag == STEREO_DOME)
+			m_ketsjiengine->InitDome(m_startScene->gm.dome.res, m_startScene->gm.dome.mode, m_startScene->gm.dome.angle, m_startScene->gm.dome.resbuf, m_startScene->gm.dome.tilt, m_startScene->gm.dome.warptext);
 
 		// Set the GameLogic.globalDict from marshal'd data, so we can
 		// load new blend files and keep data in GameLogic.globalDict