Move to template format instead of cat-EOF

Simplifies the scripts and adds the ability to easily and cleanly change
the contents of these files without dealing with escape characters, etc.

templates/9990-initramfs-tools.sh

@@ -0,0 +1,67 @@
+#!/bin/sh
+
+#set -e
+
+log_wait_msg ()
+{
+	# Print a message and wait for enter
+	if [ -x /bin/plymouth ] && plymouth --ping
+	then
+		plymouth message --text="$@"
+		plymouth watch-keystroke | read nunya
+	fi
+
+	_log_msg "Waiting: ${@} ... \n"
+}
+
+# Override maybe_break from scripts/functions
+maybe_break()
+{
+	if [ "${break}" = "$1" ]; then
+		# Call original panic
+		. /scripts/functions
+		panic "Spawning shell within the initramfs"
+	fi
+}
+
+# Override panic from scripts/functions
+panic()
+{
+	for _PARAMETER in ${LIVE_BOOT_CMDLINE}
+	do
+		case "${_PARAMETER}" in
+			panic=*)
+				panic="${_PARAMETER#*panic=}"
+				;;
+		esac
+	done
+
+	DEB_1="\033[1;31m .''\`.  \033[0m"
+	DEB_2="\033[1;31m: :'  : \033[0m"
+	DEB_3="\033[1;31m\`. \`'\`  \033[0m"
+	DEB_4="\033[1;31m  \`-    \033[0m"
+
+	LIVELOG="\033[1;37m/boot.log\033[0m"
+	DEBUG="\033[1;37mdebug\033[0m"
+
+	# Reset redirections to avoid buffering
+	exec 1>&6 6>&-
+	exec 2>&7 7>&-
+	kill ${tailpid}
+
+	printf "\n\n"
+	printf "  \033[1;37mBOOT FAILED!\033[0m\n"
+	printf "\n"
+	printf "  The PVC installer image failed to boot.\n\n"
+	printf "The error message was:\n\n    "
+
+	# Call original panic
+	. /scripts/functions
+	panic "$@"
+
+    # Reboot system
+    printf
+    printf "System will reboot in 30 seconds"
+    sleep 30
+    reboot -f
+}