Clean up ExecutionContext a bit
Use executionContext.buildFlow in Job
Fix Issue 932: no-op Jobs should not throw
TypedPipe.from(List).distinct fails
Another test case
Merge branch 'develop' into execution-cleaning
Merge ExecutionContext changes with REPL
Merge pull request #934 from twitter/fix-932

Fix Issue 932: no-op Jobs should not throw
Merge pull request #933 from twitter/execution-cleaning

Clean up ExecutionContext a bit
Remove use of MapAlgebra
Clean up the UniqueID stuff, to avoid plumbing it everywhere
Address Ian's comments
Merge pull request #935 from twitter/jco/typed_pipe_from_list

TypedPipe.from(List).distinct fails
Merge pull request #937 from twitter/uniqueid-clean

Clean up the UniqueID stuff, to avoid plumbing it everywhere