Merge pull request #30 from singhala/master

allow versionsToKeep to be set in VersionedStore (hotfix, master)
bump version to 0.0.6 hotfix for Ashu
Force cascading node materialization before write
Merge pull request #99 from twitter/render_on_write

Render on write
Bond, James Bond
Merge branch 'hotfix/0.0.7'
Merge branch 'release/0.1.0'

Conflicts:
	project/Build.scala
	summingbird-core/src/main/scala/com/twitter/summingbird/scalding/FlatMapOperation.scala
Adds the calendar batcher
Add the ability to ignore errors
Merge pull request #196 from twitter/error-for-ashu

Add the ability to ignore errors
Bump version
Merge branch 'release/0.1.1'
Merge branch 'release/0.1.1' into develop
Merge pull request #195 from twitter/utc-hourbatcher

Adds the calendar batcher
Merge branch 'develop' of github.com:twitter/summingbird into develop
bump to 0.1.2-SNAPSHOT
Merge branch 'develop' into feature/fix_storm_planner