* 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 change imports the Swarm protocol codebase. Compared to the 'swarm'
branch, a few mostly cosmetic changes had to be made:
* The various redundant log message prefixes are gone.
* All files now have LGPLv3 license headers.
* Minor code changes were needed to please go vet and make the tests
pass on Windows.
* Further changes were required to adapt to the go-ethereum develop
branch and its new Go APIs.
Some code has not (yet) been brought over:
* swarm/cmd/bzzhash: will reappear as cmd/bzzhash later
* swarm/cmd/bzzup.sh: will be reimplemented in cmd/bzzup
* swarm/cmd/makegenesis: will reappear somehow
* swarm/examples/album: will move to a separate repository
* swarm/examples/filemanager: ditto
* swarm/examples/files: will not be merged
* swarm/test/*: will not be merged
* swarm/services/swear: will reappear as contracts/swear when needed
