Kcar 0.1.1 - bytestream to Rack response converter

kcar features an HTTP parser that will convert a bytestream into a
3-element array suitable for use as a Rack response. It is IO interface
agnostic, so it may be used with HTTP streams over Unix domain sockets,
regular files, FIFOs, StringIOs as well as traditional TCP sockets.

Changes:

Our handling of pipelined identity (not chunked) responses
did not properly reset our internal buffer, causing HTTP
header parsing to fail for the second response as the buffer
still contained the last part of the body from the previous
response.

There are also minor documentation updates and cleanups.