add drift and fixing group request response time to include also sending part
- also small refactoring and update in test
organize imports
Merge pull request #1852 from pwielgolaski/jms_group

JMS: Add drift and fixing group request response time to include also sending part
* Added basic support for end-to-end integration tests using WireMock, as well as a test for issue #1845
* HttpEngine now shuts down thread pool on termination.
* Made Netty thread pool accessible (and possible to shut down) in HttpEngine.
* Added awaitTermination to ActorSupport - in some cases, we have a race condition where shutdown code wasn't being called before services were restarted.
Support providing a keystore from the classpath. Resolves #1853
Support providing a truststore from the classpath
Minor refactoring
Merge pull request #1854 from excilys/keystore-classpath

Support providing a keystore from the classpath. Resolves #1853
Minor clean up
Merge pull request #1846 from jamespic/integration-testing

HTTP: Integration Testing
Heroku redirect apps to the herokuapp.com domain.
Give the link to the SNAPSHOT repo in the README
Have local maven repo a higher precedence for using locally built snapshots
A more homogeneous output for the errors in console, increase test coverage.
Directly use FastString api
minor: sortBy() with a bettering Ordering method for avoiding calling .reverse after
Minor clean up
Use breakOut
Fix build
Upgrade Jackson 2.4.0-rc3