to get around the verify error on jdk8u20 for ratpack-hystrix:test

see issue 450
Merge remote-tracking branch 'upstream/master'
update the test to expect JSON
changed the default result from string to JSON
clean up
clean up
undo the noverify
reverted to repo version
switching to using context.byContent, and also now using
content.getReponse().send to avoid lookup as per requested
undo the changes of paramers to final, I don't know the codebase
enough yet to be making this change
Ensure that JDK8u25 or higher is used if using Oracle's JDK
Revert "Ensure that JDK8u25 or higher is used if using Oracle's JDK"

This reverts commit 65aaf37a5a0fa1199bcd7e3540ece4d38ade6cef.
Pass the Subscription down the chain for the subscriber.
Build Pac4JCallbackHandler with a builder
Merge pull request #477 from tomdcc/pac4j-callback-handler-builder

Build Pac4JCallbackHandler with a builder
lambdas.
formatting.
Some reworking on the new Pac4J handler builder.

Generally simplified things, and removed docs that weren't quite helpful in order to push us to add docs that are helpful.
Add Tom Duncan as a contributor.
disable caching