Don't install "Recommends:" when installing local tools

This patch disables the installation of "Recommends:" packages whilst
obtaining build utilities such as 'syslinux'.

It has three benefits:

 * Doesn't waste time installing useless packages whilst building.

 * Keeps the "binary chroot" clean - packages leak into the the live system
   on a rebuild.

 * Makes the behaviour of Install_Package more predictable and independent
   of the chroot's APT configuration.

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>

functions/packages.sh

@@ -34,11 +34,11 @@ Install_package ()
 	then
 		case "${LH_APT}" in
 			apt|apt-get)
-				Chroot "apt-get install --yes ${PACKAGES}"
+				Chroot "apt-get install --no-install-recommends --yes ${PACKAGES}"
 				;;
 
 			aptitude)
-				Chroot "aptitude install --assume-yes ${PACKAGES}"
+				Chroot "aptitude install --without-recommends --assume-yes ${PACKAGES}"
 				;;
 		esac
 	fi