* swarm/api: url scheme bzz-list for getting list of files from manifest
Replace query parameter list=true for listing all files contained
in a swarm manifest with a new URL scheme bzz-list.
* swarm: replaace bzzr and bzzi schemes with bzz-raw and bzz-immutable
New URI Shemes are added and old ones are deprecated, but not removed.
Old Schemes bzzr and bzzi are functional for backward compatibility.
* swarm/api: completely remove bzzr and bzzi schemes
Remove old schemes in favour of bzz-raw and
bzz-immutable.
* swarm/api: revert "completely remove bzzr and bzzi schemes"
Keep bzzr and bzzi schemes for backward compatibility. At least
until 0.3 swarm release.
This PR deprecates the file related RPC calls in favour of an improved HTTP API.
The main aim is to expose a simple to use API which can be consumed by thin
clients (e.g. curl and HTML forms) without the need for complex logic (e.g.
manipulating prefix trie manifests).
