2/9/2010
	- 2.1.1 released

2/3/2011
	- Add the ability to set ndots on Lookup objects, and parse the ndots
	  option from a resolv.conf file (patch from Oleg Tsvinev
	  <Oleg.Tsvinev@Reardencommerce.com>).

2/3/2011
	- The 'file' command in the 'update' program didn't work correctly.
	  (reported by Olafur Gudmundsson <ogud@ogud.com>)

9/15/2010
	- Change the Android name server detection mechanism to avoid false
	  positives. (patch from Ulf Dittmer <ulf@ulfdittmer.com>)

9/9/2010
	- The IXFR code didn't do serial number arithmetic correctly, and would
	  fail if the serial number wrapped.
	  (patch from Alexis MacFarlane <Alexis.MacFarlane@usc-bt.com>)