enigma2.sh.in export HOME so that .gstreamer-0.10 is not placed in / …

…but in /home/root

Existing lines 115 and 116 will then work again remove gstreamer registry bin on GUI restart.
This is necessary on updates of gstreamer so that a new gstreamer registry is written.
It still needs adaption for gstreamer 1.0, so that gstreamer 1.0 registry is deleted on GUI restart too.

 3)
  rm -fR /home/root/.gstreamer-0.10

tools/enigma2.sh.in

@@ -47,6 +47,7 @@ fi
 
 if [ -d /home/root ]; then
 	cd /home/root
+	export HOME=/home/root
 fi
 
 #check for sundtek tuner helper lib