connect gearpump with Kafka
use private val, add logs and license headers
Fix for #45 Separate subprojects examples, rest and core. Due to this fix preceding #30 there is a circular dependency between core and examples (examples should only depend on core). Once this is fixed we can remove the examples dependency in core/build.sbt.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	build.sbt
	core/src/main/scala/org/apache/gearpump/scheduler/FifoScheduler.scala
	src/main/scala/org/apache/gearpump/scheduler/FifoScheduler.scala
	src/main/scala/org/apache/gearpump/scheduler/PriorityScheduler.scala
Move Hadoop References to examples - should not be needed in core
Fixes #58
Merge pull request #60 from kkasravi/master

Fix for #45
connect gearpump with Kafka

Conflicts:
	build.sbt
use private val, add logs and license headers
add emit batch size and KafkaBolt
rebased after pulling in PR#60
add back design diagram
update the image links
Merge pull request #61 from clockfly/master

update the document links
Merge branch 'kafka_spout' of https://github.com/manuzhang/gearpump into kafka_spout

Conflicts:
	build.sbt
	core/src/main/resources/shell.scala
Merge pull request #54 from manuzhang/kafka_spout

connect gearpump with Kafka
Merge branch 'master' into scheduler

Conflicts:
	core/src/main/scala/org/apache/gearpump/cluster/AppManager.scala
	core/src/main/scala/org/apache/gearpump/scheduler/PriorityScheduler.scala
	core/src/main/scala/org/apache/gearpump/scheduler/Resource.scala
	core/src/main/scala/org/apache/gearpump/scheduler/Scheduler.scala
	core/src/main/scala/org/apache/gearpump/util/Configs.scala
	src/main/scala/org/apache/gearpump/cluster/scheduler/PriorityScheduler.scala
	src/main/scala/org/apache/gearpump/cluster/scheduler/Resource.scala
	src/main/scala/org/apache/gearpump/cluster/scheduler/Scheduler.scala
	src/main/scala/org/apache/gearpump/scheduler/PriorityScheduler.scala
	src/main/scala/org/apache/gearpump/scheduler/Resource.scala
	src/main/scala/org/apache/gearpump/scheduler/Scheduler.scala