UBUNTU: [Packaging] update urgency to medium by default

BugLink: http://bugs.launchpad.net/bugs/1745338Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

debian/rules.d/1-maintainer.mk

@@ -121,7 +121,7 @@ startnewrelease:
 	nextmajor=$(shell expr `echo $(revision) | awk -F. '{print $$1}'` + 1); \
 	now="$(shell date -R)"; \
 	echo "Creating new changelog set for $(release)-$$nextmajor.$$nextminor..."; \
-	echo -e "$(src_pkg_name) ($(release)-$$nextmajor.$$nextminor) UNRELEASED; urgency=low\n" > $(DEBIAN)/changelog.new; \
+	echo -e "$(src_pkg_name) ($(release)-$$nextmajor.$$nextminor) UNRELEASED; urgency=medium\n" > $(DEBIAN)/changelog.new; \
 	echo "  CHANGELOG: Do not edit directly. Autogenerated at release." >> \
 		$(DEBIAN)/changelog.new; \
 	echo "  CHANGELOG: Use the printchanges target to see the curent changes." \