Merge pull request #103 from encukou/py3-records

Py3: Add missing code for URI and TLSA rrtypes from the python2 branch

diff --cc dns/rdatatype.py
Simple merge

diff --cc dns/rdtypes/ANY/__init__.py
Simple merge

diff --cc tests/example
Simple merge

diff --cc tests/example1.good
Simple merge

diff --cc tests/example2.good
Simple merge

diff --cc tests/example3.good
Simple merge