(Issue#72) Disable/Enable IdleConnectionReaper through ClientConfiguration options
Merge branch 'master' of https://github.com/lc-nyovchev/aws-sdk-java into lc-nyovchev-master
'Version 1.6.4 of the AWS Java SDK'

This release updates the Amazon Elastic MapReduce client to add support for new EMR APIs, termination of specific cluster instances and unlimited EMR steps.