Add py2exe clause in setup.py

Also allow aws path to be specified in integration
tests via an env var.  This allows you to point at a specific aws
executable and run the integration tests.
Merge branch 'py2exe' into develop

* py2exe:
  Add py2exe clause in setup.py
Fixed some links in the README file.
Updated examples!
Updated samples for all services.
Fixes for Pull request review comments. Removed rds/create-db-instance.rst for now, until the original writer fixes it.
Remove duplicate link targets that conflict with model docs
Merge branch 'EronHennessey-develop' into develop

Closes #284

* EronHennessey-develop:
  Remove duplicate link targets that conflict with model docs
  Fixes for Pull request review comments. Removed rds/create-db-instance.rst for now, until the original writer fixes it.
  Updated samples for all services.
  Updated examples!
  Fixed some links in the README file.
Bumping version to 0.16.0
Merge branch 'release-0.16.0' into develop

* release-0.16.0:
  Bumping version to 0.16.0
Update s3 high level to guess mime type of files
Add arg to disable mime type guessing

sync and cp have a `--no-guess-mime-type`.
Update integration test to check for content type
Merge branch 'guess-content-type-s3' into develop

* guess-content-type-s3:
  Update integration test to check for content type
  Add arg to disable mime type guessing
  Update s3 high level to guess mime type of files