Support for adding MIME mappings
Merge pull request #323 from celkins/add-mime-mapping

Add ability to define custom MIME mappings (for servlets)
Finish the root vs. context path weirdness.

Should make #276 a moot point.
Only instrument the service handler.
Rename Service to Application.
Drop JsonHelpers.

Just use ObjectMapper.
Added SpiFinder.
Add support for SPDY push strategies.
Merge remote-tracking branch 'upstream/master'