Added squashfs compression patch and updated README

Installer-USB-Stick/README

@@ -4,6 +4,8 @@ UCK-SVN (getestet mit Revision 474)
 Plattenplatz
 
 Wie benutzt man das neue UCK custom script:
+0. Im UCK Ordner mit patch -p1 <paht_to_compression_patch> die Kompression
+   des SquashFS Images erhöhen
 1. Ein ggf. alten customize-scripts Ordner in ~/tmp löschen
 2. uck-remaster <path_to_iso> <path_to_customize-lip> ausfüren
 3. ??? (Warten)

Installer-USB-Stick/uck-increase-squashfs-compression.patch

+--- a/libraries/remaster-live-cd.sh	2013-03-19 19:27:55.711312314 +0100
++++ b/libraries/remaster-live-cd.sh	2013-03-19 19:33:33.048317375 +0100
+@@ -514,7 +514,7 @@
+ 		if [ `echo -e "${SQUASHFS_VERSION}\n4.2" | sort | head -n1` = "4.2" ]; then
+ 			if [ `echo -e "${GUEST_KERNEL_VERSION}\n2.6.30" | sort | head -n1` = "2.6.30" ]; then
+ 				echo "Squashfs>=4.1, guest kernel>=2.6.30: Enabling XZ compression for squashfs..."
+-				EXTRA_OPTS="${EXTRA_OPTS} -comp xz"
++				EXTRA_OPTS="${EXTRA_OPTS} -comp xz -Xbcj x86 -Xdict-size 25% -b 1024K"
+ 			fi
+ 		fi
+