Convert client.currTxnCommands to FastQueue

Add license boilerplate at the top of each file
Add a MIT License
Add a better test suite based on vows framework.
Improve transaction support.
Phase out commandConfig.
Benchmarks
Remove TODOs

Add in consistent hashing.
Make all commands more idiomatic to invoke.
Replace (hash[key] && ...) with (hash.hasOwnProperty(key) && doSomethingWith(hash[key]))
Add in UDP protocol support.
Add in Memory Limit Handling because Redis will reject any write request that goes over the memory limit.