This is an experimental branch of mini_s3.

* The code is heavily refactored. It uses 80 characters per line.
* There are Makefile changes
* It contains an initial integtation of `fakes3` to support integration testing
  without using a real Amazon S3 account.
* It uses ferd's `lhttpc` fork optimized for multiple connections to the same
  site instead of `ibrowse`