Release version 0.5.4

Updated backend dependencies for 0.5.1

Foil release 0.3.0

- Server-side rendering now expects a React Router list of routes instead of a React component. This approach handles requests such as redirects better.

- Improved resolving assets for foils on backend.

- Redirects no longer part of Foil schema.

- Fixed backend API to be more robust and simplified. We can anow query for multiple posts, use unix style globs in queries, or query for the closest post recursively along a given permalink path.

- Improved server-side renderer, modified foil schema to include multiple covers. Backend now properly renders queries.

- Better trace behavior for backend.