Merge pull request asb#20 from Rob-Bishop/master

Height now fixed. Width is now scalable so that more text is displayed on widescreen displays.

raspi-config

@@ -10,15 +10,15 @@ calc_wt_size() {
   # NOTE: it's tempting to redirect stderr to /dev/null, so supress error 
   # output from tput. However in this case, tput detects neither stdout or 
   # stderr is a tty and so only gives default 80, 24 values
-  WT_HEIGHT=$(tput lines)
+  WT_HEIGHT=17
   WT_WIDTH=$(tput cols)
 
-  if [ -z "$WT_HEIGHT" ] || [ "$WT_HEIGHT" -lt 15 ]; then
-    WT_HEIGHT=20
-  fi
   if [ -z "$WT_WIDTH" ] || [ "$WT_WIDTH" -lt 60 ]; then
     WT_WIDTH=80
   fi
+  if [ "$WT_WIDTH" -gt 178 ]; then
+    WT_WIDTH=120
+  fi
   WT_MENU_HEIGHT=$(($WT_HEIGHT-8))
 }