Initial public release

- Includes the full plugin, as it was first release open source to GitHub.com
- Version 2.0 marks the first public release
Adds /vendor and compsoer lock file to gitignore
Adds templated contributing, licensing documents
Removes the exclusions section of the terms
Removes old TERMS file.
Merge pull request #1 from gboone/master

Initial public release of the CMS Toolkit plugin