Return only hashcodes >=0. Fixes #16
Merge pull request #17 from liamdon/patch-1

Key hashing can lead to undefined server references
Bump patch version
Added @liamdon to AUTHORS
Merge branch 'master' of github.com:alevy/memjs
Better benchmarking
Async response handler

Use sequence numbers in opaque to find callbacks rather than rely on
ordering. In general, memcached will respond in order, but this way (1)
it fixes the bug when performing several commands before socket
connection has completed and (2) we're not *reliant* on ordering.
We probably don't need profanity in the tests after all
Bump version
Increment and Decrement functions added
Merge pull request #24 from matteofigus/master

I added the increment and decrement functions
All server calls should wait until authenticated
seq is set to a random initial value
increase seq random range to 2^32
seq range is actually only good to 2^31