scratch 2: use pkg-install

apps/Scratch 2/install-32

@@ -14,7 +14,7 @@ echo "Copying libpepflashplayer.so to /usr/lib/chromium-browser..."
 sudo cp -af ~/scratch2/libpepflashplayer.so /usr/lib/chromium-browser/libpepflashplayer.so || error "Failed to copy libpepflashplayer.so"
 
 echo "Installing scratch2 package..."
-sudo apt install -yf ~/scratch2/scratch2_0.25_armhf.deb || error "Failed to install scratch2 package"
+"${DIRECTORY}/pkg-install" "$HOME/scratch2/scratch2_0.25_armhf.deb" "$(dirname "$0")" || error "Failed to install scratch2 package"
 
 echo "Holding scratch2 package version so it won't upgrade..."
 echo "scratch2 hold" | sudo dpkg --set-selections

apps/Scratch 2/uninstall

@@ -10,4 +10,4 @@ function error {
 echo "Allowing scratch2 package to be uninstallable..."
 echo "scratch2 install" | sudo dpkg --set-selections
 
-sudo apt purge scratch2 -y || error "Failed to uninstall scratch2 package"
+"${DIRECTORY}/purge-installed" "$(dirname "$0")" || error "Failed to uninstall scratch2 package"