* Consolidate wait implementations.
* Consolidate fetch implementations.
* Share callback between wait and fetch to address issue in which only one callback can be run for a given subscribe channel.
* Reactivate manager tests.
* Remove more code.
* Add some documentation.
* Duplicate wait1 implementation and seperate out wait datastructures.
* Address Philipp's comments.
* Temporarily address test failure problem by increasing timeout and reducing load in tests.
* Update stress tests to include distributed wait.
* Implement new plasma client API.
* Formatting fixes.
* Make tests work again.
* Make tests run.
* Comment style.
* Fix bugs with fetch tests.
* Introduce fetch1 flag.
* Remove timer only if present.
* Formatting fixes.
* Don't access object after free.
* Formatting fixes.
* Minor change.
* refactoring plasma datastructures
* Change plasma_request and plasma_reply to use only arrays of object requests.
* some more fixes
* Remove unnecessary methods.
* Trivial.
* fixes
* use plasma_send_reply in return_from_wait1
* Lint.
