Release Name: 0.9.1

Notes:
Works with both blocking and nonblocking sockets now. 

Offset and range values are supported with the IO#sendfile call, so you can send only part of a file.

Added full testsuite and it passes on both Linux (x86 and AMD64) and FreeBSD. Should also work on Solaris, but that hasn't been tested.


Changes:
- Improved interface with non-blocking sockets
- Added unit tests for blocking sends
- Added unit tests for nonblocking sends
- Added README
- Packaged in a RubyGem