Adds templates, Adds configure instructions, Modifies .gitignore

1.  Adds a blank / template config.json file,
2.  Adds configure instructions to README,
3.  Generates development.js based on the local client.json ( see instructions in #2 ),
4.  Adds a development_TEMPLATE.js file so people know what the development.js file is actually doing,
5.  Updates .gitignore to exclude peoples' local development.js file so it isn't pushed to their server ( because doing that would make their client_secrets... not secret)