Start DBs before FS if possible

Thanks-to: Humberto Diógenes <hdiogenes@gmail.com>

debian/freeswitch-sysvinit.freeswitch.init

@@ -4,6 +4,8 @@
 # Provides: freeswitch
 # Required-Start: $network $remote_fs $local_fs
 # Required-Stop: $network $remote_fs $local_fs
+# Should-Start: postgresql mysql memcached mongodb
+# Should-Stop: postgresql mysql memcached mongodb
 # Default-Start: 2 3 4 5
 # Default-Stop: 0 1 6
 # Short-Description: FreeSWITCH Softswitch