Fix comment in README

Fixes #320.
Add tests for urlencoded keys

CLI level tests for aws/awscli#314.
Merge branch 's3-escape-uri' into develop

* s3-escape-uri:
  Add tests for urlencoded keys
Don't shell out to rst2man

This has proven to be problematic.  Instead use
the `manpage.Writer` object directly.

unit/integration tests passing.

Fixes #322.
Merge branch 'readme-configs' into develop

* readme-configs:
  Fix comment in README
Merge branch 'no-more-rst2man' into develop

* no-more-rst2man:
  Don't shell out to rst2man
Fix hanging test

This is just to get the builds passing again.  Need to do work
to figure out why the thread hangs.
Merge branch 'fix-hanging-s3-test' into develop

* fix-hanging-s3-test:
  Fix hanging test
Fix failing test on windows

Well, actually don't run the test.
We don't need to test the PosixHelpRenderer on windows
platforms.
Merge remote-tracking branch 'upstream/develop' into develop