tsxs can be found in trafficserver-dev package

GitHub: This closes #69
TS-2687 Support for MIPS paltform
Added TS-2687 to CHANGES.
TS-2589: don't hold up the response until the server starts sending content

If there is a transform (for example a null transform) then the
response headers aren't forwarded until the origin server starts
sending content. Normally (without a transform) the headers are
forwarded as soon as they are done, whether content is available
yet or not.

The headers are sent when the transform calls TSVConnWrite() and
the transform is called at the end of the headers/start of the
content. But it's not called if the available content is empty. A
possible fix is to call the transform at the start of the content
whether content is available yet or not. This doesn't affect a
buffered transform which can still delay and update the headers
until it calls TSVConnWrite().

GitHub: This closes #49