Add support for dnsmasq version 2.48

Following the bug fix for bug 1170793 we are able to add
in support for dnsmasq versions that do not support tags.

2.48 is the version shipped in RHEL 6.4

Change-Id: Ia7d2b1c0adb477159ce146bcd4323d4b2795bff5
(cherry picked from commit 6012b7e97c361a90d88a573d3c6a9f33e03f4281)
Merge "Add support for dnsmasq version 2.48" into stable/grizzly