batch of rpc fixes

rpctest executable

Refactoring error transaction_queue error handling and `update_sealing` method.

Conflicts:
	miner/src/miner.rs

Avoid importing transactions with gas above 1.1*block_gas_limit to transaction queue

Removing transactions that failed to be pushed to block.

Conflicts:
	miner/src/transaction_queue.rs

Updating clippy

Conflicts:
	miner/src/miner.rs

Attempting to add all transactions to mined block

Prettier version w/o git dir; Use rustc compile time version