Beginning to create bundle manager service

This will allow us to build a manifest object based on a group of directories that have been passed
Refactoring so that the manifest parser also expands relative file paths in each manifest

It does this by recieving a root URL for each manifest. The Bundle manager is then responsible for the collecting of multiple 'bundles', talking to the parser, and returning the merged manifest result
Ability to pre-render all includes on a given manifest object
Pulling all the utilities together to make the API
Scaffolding the documentation site for Sticker