Fixed buggy display scripts

bin/do-show

 #!/bin/sh
-export DISPLAY=:0
-cd /home/pi/kiosk/content
-feh -FZ ../lib/background.png &
 while true
 do
 /home/pi/kiosk/var/loop

bin/run

@@ -38,6 +38,7 @@ videoformats = [
 # Template for loop script
 looptemplate = '''#!/bin/bash
 cd %s
+export DISPLAY=:0
 feh --cycle-once -FZ -D %d
 '''