gearpump-0.3.0-rc1

Change List:

- #510, add log directory for UI server

- #485, retain inactive application history in Master

- #504, 1) AppMaster return more detailed application runtime information. 2) fix a worker bug when returning executors which run on worker.

- #422, [UI] show the number of executors (2) changed layout of application page

- #417, add a experiment module to distribute a zip file to different machines

- #502, fix KafkaStorage loading data for async kafka consumer

- #422, [UI] (1) added home directory in UI (2) removed millis from duration 3) updated dag control height

- #476, fix worker and master log path format in rest service

- #498, worker rest data is not updated in UI

- #397, move distributed shell from experiments to examples folder

- #493 add implicit sender so that the Task can send itself messages[work around]

- #427, use new kafka producer in kafka 0.8.2

- #422, added cluster page to show master and worker information

- #489, make the worker rest information easier to parse

- #202, Add a default serializer for all kinds of messages

- #477, REST Workers should return more information

- #456, uses webjars to serve visjs 3.10.0

- #483, upgrade visdag to 3.10 because widget does not repaint correctly when a node is moved

- #473, Use webjars with spray support instead of bower to serve static resources

- #477, return more data for rest call workers/

- #474, fix rest service UT test fail.

- #479, publish test jar as artifacts

- #419, Reorder the application log by master startup timestamp

- #456, Use visdag to render the graph DAG

- #464， Travis bower integration

- #394, fix kafka producer hang issue

- #468, For test code, the ClockService will throw excepton when the DAG is not defined

- #465, fix appname prefix bug

- #461, AppMasterSpec and WorkServiceSpec UT are failing

- #270, Create a force-direct dag

- #453, Add rest service to serve master info

- #423, refactor task by seperating TaskActor and Task

- #422, add worker rest api

- #449: avoid load external resource by removing all CDN external links

- #397 refactor distributed shell by using new Cluster API

- #441, ui-portal is failed to build because of spray version conflict

- #430 use application name as unique identifier for an application

- #440, moved dashboard code from conf to service/dashboard

- #402, refactor task manager

- #280, Add websockets to REST api

- #269, Define UI Dashboard structure

- #406, custom executor jvm config in gear.conf is not effective.

- #394, fix ActorSystemBooter process not shut down after application finishes

- #412, add version.sbt

- #410 Add sbt-eclipse plugin and wiki for how to build gearpump on eclipse

- #408, handle Ctrl+C(sigint) gracefully.

- #396, bump up kafka version to 0.8.2.0

- #398, Expose more metrics info

- #389, fix kafka fetch thread bug

- #386 UT fail due to unclosed sequence file

- #370, refactor streaming appmaster

- #358, use uPickle for REST Service

- #372, fix DAG subgraph build and more Graph UT

- #377, fix KafkaSource.pull performance due to the List.append is not having good performance

- #378, construct the serializer explicitly, instead of implicitly via the kryo serializer akka extension

- #380, set the context class loader as the URL class loader for ActorSystem.

version in ThisBuild := "0.3.0-rc1"