Log Message:
Update from version 0.37 to version 0.44.

Added new dependencies.

Changes:

0.44 Thu Mar 27 08:35:59 GMT 2008
    - fix bug with storing files consisting of "0" (thanks to
      Martin Atkins)

0.43 Sat Mar  1 10:55:54 GMT 2008
     - add binmode() to support Windows (thanks to Gabriel Weinberg)

0.42 Thu Feb 28 06:39:59 GMT 2008
     - add exponential backoff upon temporary errors with the new
       retry option

0.41 Fri Nov 30 10:42:26 GMT 2007
     - fix the expensive tests (patch by BDOLAN)
     - added support for EU buckets (patch by BDOLAN)

0.40 Tue Oct 30 11:40:42 GMT 2007
     - fix for content length with empty keys by Mark A. Hershberger
     - get_key and get_key_filename now return content_length
     - rewrote synopsis
     - added support for common prefix (thanks to Andy Grundman)

0.39 Sun Aug 19 14:47:01 BST 2007
     - add add_key_filename and get_key_filename which send files
       directly from disk - good for large files (Jim Blomo)
     - support UTF8 keys (Jim Blomo)
     - switch back from Build.PL to Makefile.PL

0.38 Sun Mar  4 16:43:28 GMT 2007
     - use http_proxy and https_proxy environment variables for proxy
       settings (Ask Bjoern Hansen)
     - don't add the Authorization header if one is already specified
       when making a request - good for allowing caching to resources
       that are public. (Ask Bjoern Hansen)