Update Documentation and Purge Extras

Commit message from laurenrother
Before alterations, this content was the module author-determined
description of and instructions for use of the module.

As part of a joint Forge/Docs team effort to standardize formatting and
encourage quality module documentation, a best practices README
template was created via internal and external user testing. That
template was then applied to this module.

I pulled in content from the original README on GitHub as well as the
Forge Module Description. Standard headings were added (Overview,
Module Description, Setup, Usage,
Implementation, etc.) to organize content, existent content was moved
under its appropriate heading and edited for tone/flow/clarity, and
basic formatting was done to
adhere to template standards.

Extraneous, empty READMEs were deleted.
Merge pull request #44 from puppetlabs/readme_update

Update Documentation and Purge Extras