2) Remove io.druid files from client

Revert the previous commit.  After going down this path, I realized that extracting things enough to allow Queries to be extended without depending on Druid proper was going to lead down a very nasty path.  So, I've decided against that.  Extending queries will require a tight dependency on Druid proper.

2) Switch DefaultObjectMapper to CommonObjectMapper
3) Create new DefaultObjectMapper in client that has Query stuff registered on it by default

2) Fix group by query to work with new unit test, fixes #232

2) Extract SearchQueryRunner out of SearchQueryRunnerFactory
3) Extract ColumnSelectorBitmapIndexSelector out to make it reusable

1) Delete the files that have moved to druid-api and get them through the druid-api dependency.  Still need to fix Searchable on StorageAdapter, but other than that, everything should compile.

1) Move various "api" classes to io.druid packages and make sure things compile and stuff -- continued!  Come classes didn't get committed?

Removed zk references from realtime config

Conflicts:
	client/src/main/java/com/metamx/druid/coordination/BatchDataSegmentAnnouncer.java
	client/src/main/java/com/metamx/druid/curator/announcement/Announcer.java
	client/src/main/java/com/metamx/druid/query/filter/SelectorDimFilter.java
	client/src/main/java/com/metamx/druid/query/search/SearchQueryQueryToolChest.java
	indexing-service/src/main/java/com/metamx/druid/indexing/common/tasklogs/S3TaskLogs.java
	indexing-service/src/main/java/com/metamx/druid/indexing/coordinator/ForkingTaskRunner.java
	indexing-service/src/main/java/com/metamx/druid/indexing/coordinator/RemoteTaskRunner.java
	indexing-service/src/main/java/com/metamx/druid/indexing/worker/WorkerCuratorCoordinator.java
	indexing-service/src/test/java/com/metamx/druid/indexing/coordinator/RemoteTaskRunnerTest.java
	pom.xml
	server/src/main/java/com/metamx/druid/http/MasterMain.java
	server/src/main/java/com/metamx/druid/http/MasterServletModule.java
	server/src/main/java/com/metamx/druid/master/DruidMasterConfig.java
	server/src/test/java/com/metamx/druid/master/DruidMasterTest.java
	server/src/test/java/com/metamx/druid/query/group/GroupByQueryRunnerTest.java

1) ExecutorNode is working, except for the running of the task.  Need to adjust it to be able to run a task and then everything will be wonderful

Fixing bug where twitter example does not run.

Port Realtime nodes to guice

Fix persist of empty indexes in index generator job