unleash-client-java-6.0.1

• 1af17b38 - [maven-release-plugin] prepare for next development iteration
• d512249a - meta: add stale bot config (reference unleash/.github)
• b06e5699 - Merge pull request #162 from Unleash/meta/add-stalebot
• d85e6133 - Add getFeatureToggleDefinition to More interface (#160)
• 3f7bf213 - task: Make http agent timeouts configurable (#164)
• ad1ba267 - task: Update changelog
• 992c86df - [maven-release-plugin] prepare release unleash-client-java-6.0.1