miner: differentiate between uncle and lost block

* miner: commit state which is relative with sealing result

* consensus, core, miner, mobile: introduce sealHash interface

* miner: evict pending task with threshold

* miner: go fmt

cmd, eth: clean up miner startup API, drop noop config field

cmd, core, miner: add --txpool.locals and priority mining

* cmd, eth, miner: make recommit configurable

* cmd, eth, les, miner: polish a bit

* miner: filter duplicate sealing work

* cmd: remove uncessary conversion

* miner: avoid microptimization in favor of cleaner code

consensus/clique, light: light client snapshots on Rinkeby

* swarm, swarm/network, swarm/pss: log error and fix logs

* swarm/pss: log compressed publickey

crypto/bn256: add missing license file, release wrapper in BSD-3

Ensure from < to when tracing chain

* cmd/puppeth: Accept identityfile in the server string with fallback to id_rsa

* cmd/puppeth: code polishes + fix heath check double ports

console: fixed comment typo

consensus/ethash: reduce notify test aggressiveness