Add constructors to ValuePipe
Properly close tuple iterator in test framework.
Merge pull request #893 from twitter/oscar-valuepipe

Add constructors to ValuePipe
Merge pull request #896 from daisyzhou/develop

Properly close tuple iterator in test framework.
Merge pull request #890 from sriramkrishnan/develop

Adding a test for the scalding repl
start adding flag
make scald-repl.sh into a more lightweight wrapper around scald.rb