Added an "installer" for Linux that creates desktop and application

entries for SavvyCAN, increased the size of the main window a bit.

install.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+CURDIR=`pwd`
+APPDIR="$(dirname -- "$(readlink -f -- "${0}")" )"
+
+cd "$APPDIR"
+
+# Set absolute path work around
+sed -e "s,FULLPATH,$PWD,g" SavvyCAN.desktop > SavvyCAN.desktop.temp
+
+cp SavvyCAN.desktop.temp ~/.local/share/applications/SavvyCAN.desktop
+cp SavvyCAN.desktop.temp ~/Desktop/SavvyCAN.desktop
+rm SavvyCAN.desktop.temp
+
+echo "Installed SavvyCAN icons on menu and desktop !"
+