5 features added: submodule version, expand all, collapse all, copy JSON and autoload

4 features added (submodule versions, expand, collapse, autoload) - c07df02b997f5378cfc7b103ee7374e4ccd2d728
- Versions now displayed for all submodules
- expand all JSON button
- collapse all JSON button
- Extension is automatically loaded on qualified urls

Documentation Updates

"Copy JSON" to clipboard feature  - de7c7b4f7c266394d5fae5578ae9f4cee3fdb4f3
- Needed to refactor JS so that the chrome extension API is available
- added jQuery
- added backgorund.js for doing the actual copy-to-clipboard