check-in/ json output format, bundle event log
codec array sugar and more robust hocon validation
Merge branch 'master' into logging-changes-with-new-codec

Conflicts:
	hydra-data/src/main/java/com/addthis/hydra/data/query/Query.java
	hydra-data/src/main/java/com/addthis/hydra/data/query/source/SearchRunner.java
	hydra-filters/src/main/java/com/addthis/hydra/data/filter/bundle/BundleFilterChain.java
	hydra-main/src/main/java/com/addthis/hydra/job/spawn/resources/JobsResource.java
	hydra-main/src/main/java/com/addthis/hydra/query/tracker/QueryTracker.java
	hydra-main/src/main/java/com/addthis/hydra/util/LogUtil.java
	hydra-main/src/main/resources/reference.conf
	hydra-task/src/main/java/com/addthis/hydra/task/map/StreamMapper.java
	hydra-task/src/main/java/com/addthis/hydra/task/output/AbstractDataOutput.java
	hydra-task/src/main/resources/plugins/core-output-stream-formatters.classmap
	pom.xml
couple more post-merge fixes
add json formatter to plugins
clean up some log line syntax
clean up error reporting in search runner
upgrade log4j2 + reasonable defaults
clean up main class/ method
handle local_stack worker/master collisions
remove old log4j(1) config
minor path fix
Merge pull request #109 from addthis/logging-changes-with-new-codec

bundle logging and log4j2