Merge pull request #55 from wajam/clement-taskdata-refactoring

Wrapped Feeder return values in TaskData, with retryCount exposed
Remove logging warnings
Merge pull request #57 from wajam/alex-remove-logging-warnings

Remove logging warnings
Added a max retry count metric, removed the global retry count one
Use valuesIterator instead of _._2 ugliness
Reimplement max retry count metric without using metrics listeners
Merge pull request #58 from wajam/clement-max-retry-counter

Added a max retry count metric, removed the global retry count one
[fix tests] Remove global retry count checks in TestTask
Merge pull request #59 from wajam/clement-max-retry-counter

[fix tests] Remove global retry count checks in TestTask
Merge branch 'master' into clement-sametoken-concurrency

Conflicts:
	spnl-core/src/main/scala/com/wajam/spnl/Task.scala