* swarm/shed: remove metrics fields from DB struct
* swarm/schunk: add String methods to modes
* swarm/storage/localstore: add metrics and traces
* swarm/chunk: unknown modes without spaces in String methods
* swarm/storage/localstore: remove bin number from pull subscription metrics
* swarm/storage/localstore: add resetting time metrics and code improvements
cmd/swarm/swarm-smoke: improve smoke tests (#1337)
swarm/network: remove dead code (#1339)
swarm/network: remove FetchStore and SyncChunkStore in favor of NetStore (#1342)