Fix propagation of failures in installer scripts

Change-Id: Ie83a4c9284ea63b40c37975da261634f930b6317
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/common/logging b/common/logging
index a48e01d..080eb63 100644
--- a/common/logging
+++ b/common/logging
@@ -34,6 +34,13 @@
 }
 
 
+FATAL_TRACK() {
+	echo -e "\n### $(date) ${FUNCNAME[1]}: FATAL error: $*" >&2
+	track end fatal $1 "'${@:2}'" none
+	print_stack
+	exit 1
+}
+
 FATAL() { 
 	echo -e "\n### $(date) ${FUNCNAME[1]}: FATAL error: $*" >&2
 	print_stack