sumByLocalKeys, Counters and Task Numbers
Revert everything but sumByLocalKey
Merge branch 'develop' into sumbylocalKeys
Merge
How did that even compile?
Merge pull request #661 from twitter/tasks-mapside

sumByLocalKeys
Refactor Grouped to use TypedPipe
Clean the state tracking up more
Merge pull request #716 from twitter/group-better

Refactor Grouped to use TypedPipe
Move hashJoin and friends to TypedPipe
Don't convert back to TypedPipe from KeyedList until needed
Created a typed wrapper for Checkpoint and added tests for it
Merge pull request #722 from ccsevers/typed_checkpoint

Created a typed wrapper for Checkpoint and added tests for it
Merge pull request #721 from twitter/fix-hash

Move hashJoin and friends to TypedPipe
Fix compile bug with scalding-commons
Merge pull request #724 from twitter/stay-grouped

Looks good. join join join sounds like a really useful next thing.
Separate the localScheme and hdfsScheme from FileSource.

This will enable the reuse of the *Scheme traits with a new subclass of SchemedSource that is not a FileSource.
Add a TemplateSource class.

This provides access to the cascading TemplateTaps through a scalding Source object. Follows the pattern of FileSource.
Adds tests for the new TemplateSource.
Set all the seeds in join algorithms