1) Initial commit: Converter Task
1) Remove the need for TaskActions to require a Task as a constructor parameter
fix bugs in balancing logic and removing auto-scaled node
[maven-release-plugin] prepare release druid-0.3.16
[maven-release-plugin] prepare for next development iteration
fixing a bug with indexing service not correctly killing worker nodes
fix broken UT
[maven-release-plugin] prepare release druid-0.3.18
[maven-release-plugin] prepare for next development iteration
1) Remove Task parameter from other methods off of TaskToolbox that required it
2) Move getTaskDir() off of TaskConfig and onto TaskToolbox
3) Rename SegmentKiller interface to DataSegmentKiller
4) Change signature of "DataSegmentKiller.kill(Collection<DataSegment>) throws ServiceException" to just kill(DataSegment) throws SegmentLoadingException
5) Add various log messages
6) Update the version of the segment that has been converted
1) Adjust the Config stuff that WorkerSetupManager was using to be reusable
2) Use new ConfigManager to pull out a whitelist for the Master
1) Stop polling in ConfigManager when stop is called
2) Remove WorkSetupManager in favor of just using ConfigManager
1) Initial commit: Converter Task
1) Remove the need for TaskActions to require a Task as a constructor parameter
1) Remove Task parameter from other methods off of TaskToolbox that required it
2) Move getTaskDir() off of TaskConfig and onto TaskToolbox
3) Rename SegmentKiller interface to DataSegmentKiller
4) Change signature of "DataSegmentKiller.kill(Collection<DataSegment>) throws ServiceException" to just kill(DataSegment) throws SegmentLoadingException
5) Add various log messages
6) Update the version of the segment that has been converted
1) Adjust the Config stuff that WorkerSetupManager was using to be reusable
2) Use new ConfigManager to pull out a whitelist for the Master
1) Stop polling in ConfigManager when stop is called
2) Remove WorkSetupManager in favor of just using ConfigManager
Merge remote branch 'origin/convert_task' into convert_task

Conflicts:
	merger/src/main/java/com/metamx/druid/merger/coordinator/TaskMasterLifecycle.java
Merge pull request #97 from metamx/convert_task

Index Conversion Task and adjustment to TaskAction API