Add ability to switch database driver

Also added mysqlconnector packages into default installation.

blueprint enable-mysql-connector

Change-Id: Ib2cda7cb183dc8f0ff4759cc6e9ecab469fd121c
diff --git a/files/apts/nova b/files/apts/nova
index e779849..090ca4d 100644
--- a/files/apts/nova
+++ b/files/apts/nova
@@ -6,6 +6,7 @@
 iputils-arping
 mysql-server # NOPRIME
 python-mysqldb
+python-mysql.connector
 python-xattr # needed for glance which is needed for nova --- this shouldn't be here
 python-lxml # needed for glance which is needed for nova --- this shouldn't be here
 gawk