Integrate server side geschichte handler.
Merge https://github.com/kordano/lambda-shelf

Conflicts:
	src/clj/lambda_shelf/core.clj
Realize shelf value with stage.
Merge https://github.com/kordano/lambda-shelf
Update repo metadata for new hash values.
Realize first value in om.
Add committing bookmarks to repo.
Add logger.
Fix multiple commits.
Model data structure and implement merging and sorting.
Add comment support.
Add (dumb) voting.
Use CouchDB for durable storage.
Use durable couchdb.
Set host name.
Fix server url for demo peer.
Add automatic merging.
Synchronize some inputs (votes) with sync.

Fix fetches, ensure protocol.
Fix: Stringify host argument properly.
Use persistent database.