Merge pull request #249 from twitter/feature/use_arbitrary_in_tests

Feature/use arbitrary in tests
Make Producer covariant
Merge pull request #251 from twitter/covariant

Make Producer covariant
Address naming issues to avoid confusion
Fix tests to match
Add support to control future collector in ClientStore
Fix platform bugs
Add information about how we map between clusters to the output graph
Merge pull request #254 from twitter/fc_clientstore

Add support to control future collector in ClientStore
set version strings to 0.1.5
Merge branch 'release/0.1.5' into develop
Merge remote-tracking branch 'origin/feature/storm_new_planner' into feature/move_dag_to_core

Conflicts:
	summingbird-storm/src/main/scala/com/twitter/summingbird/storm/PlannedTopology.scala
	summingbird-storm/src/main/scala/com/twitter/summingbird/storm/StormPlatform.scala
	summingbird-storm/src/test/scala/com/twitter/summingbird/storm/TopologyPlannerLaws.scala
Merge pull request #250 from twitter/feature/storm_new_planner

Feature/storm new planner
Update to newer code
Merge branch 'develop' of github.com:twitter/summingbird into feature/move_dag_to_core