Removed trailing whitespace from the end of lines.
Removed (stale) example rails application.
Added links of interest to the top of the README.
Removed lengthy change log in favor of links to release notes in README.
Reformatted a few rdoc links to make it easier to transition to markdown.
Fixed an issue with AWS::S3::S3Object#write and Ruby 2.0

Resolved an issue in #write for regular and client-side encrypted
objects that passed in IO-like objects (Net::HTTP now passes
in an output buffer to #read).

Fixes #215
Fixes #192
Updated S3 integration test scenarios to work with Ruby 2.0