Prevent repeated calls to bootstrap.initialize()
Don't initialize logging more than once
Update airlift logger to use java.util.logging

This is to support code that runs in classloaders separate from the main one.
Export http client stats to JMX
quickfix for 0.71 release to set props correctly
[maven-release-plugin] prepare release 0.71
[maven-release-plugin] prepare for next development iteration
revert quickfix 7646546ecbda256bb29d6b1a5fd6473cfa70ad34
Add test for connection refused
Remove jax-rs from clients
Trim lines in column printer
Add Bootstrap constructor that takes an iterable of modules
Add support for multiple event client implementations
Minor cleaup

Remove invalid copyright notice
Add Changes and News for event changes
Split loging api from log management code
Fix handling of invalid pid files in launcher
Add @PreDestroy to NettyAsyncHttpClient
Destroy any HTTP clients created via Guice
Update release notes
Upgrade to AirBase 5