Remove unneeded import
Document Request and Response
Update copyright years
Direct entire body to stdout
Minor cleanups to README
Merge branch 'master' into performance
Isolate loading of test data

Add a complete HTTP response as example2.txt.

Modify Snippet to only load the sample file once, reducing the surface
that needs benchmarking.
Build tags file with hasktags
Use bytestring-lexing for Int parsing

Performance improvement to receiveResponse: based on profiline, switch
to using Data.ByteString.Lex.Integral's readDecimal functions to parse
the Content-Length header into an Int. Thanks to Carl Howells for his
suggestion of bytestring-lexing.
Trivial whitespace changes