Add support for async Netty intents using Scala futures
deprecate the redundant Directive.success
Merge pull request #176 from daggerrz/feature/scala-futures

Add support for async Netty intents using Scala futures
spacing
General kit for response functions of future, and moving `FuturePlan`
into a `future` package.
this stack trace should be printed to stderr too
actually respond with the error
rework Futured kit so we can use the plan's configured exception handler
Correct path to unfiltered-netty template
Merge pull request #190 from skazhy/doc-uri-fix

Correct path to unfiltered-netty template
Update LICENSE

it's been that many years
Merge branch 'master' of github.com:unfiltered/unfiltered into netty4

Conflicts:
	netty/src/main/scala/async/plans.scala
	netty/src/main/scala/exceptions.scala