add a changelog
EM Synchrony should use Utils::URI
make the default uri parser configurable
allow Utils.default_uri_parser to take a URI object that responds to #parse
Merge pull request #267 from lostisland/configurable-URI

Configurable uri
stop testing with Connection#build_url since nothing uses it
don't need to chomp that last / off

Fixes #212
don't need this extra method laying around
Release 0.9.0.rc2