1.4.2	2016-04-05
	* fix bug: starttls error and change command line option "-e"
	* fix bug: RR format error when printing question section
	* fix bug: error in gnutls handshake
	* choose default port based on protocol (53 for UDP and TCP, 853 for TLS)
	* update README for recent changes

1.4.1	2015-11-10
	* use TLS and port 853 by default
	* STARTTLS and other protocols as options

1.4	2015-04-17
	* add EDNS0 patch contributed by Warren Kumari. Thanks!
	* set DO (DNSSEC OK) bit for queries by default

1.3	2014-11-25
	* add support for MAC OS (now we support Fedora 20, Ubuntu, CentOS
	  and MacOS).
	* add verbose print (use -V to print out received DNS responses,
	  in addition to the latency statistics)
	* we check both the query name and TO bit when negotiate TLS (we
	  recognize TLS negotiation when either query name is "STARTTLS" or
	  TO bit is set).
	* support using hostname (so you can specify the option -r with
	  the resolver's hostname, we used to only support IP)

1.2	2014-11-10
	* add autoconf and automake.
	* get rid of the BIND library, the code can be compiled and run
	  without BIND.
	* fix a few small bugs
	* add support for CentOS. 

1.1	2014-11-09
	* fix a few bugs

0.1	2014-02-27
	* first release
