Feature request: More block data (from Coinbase transaction)

There are some interesting information that to the user is related to a "block", but isn't known before loading the coinbase transaction.

* Which miner mined the block, based on the coinbase and address output information
* How much transaction fees for the block

It would be nice to be able to get this information just by fetching the block.

It is not possible today to fetch latest-blocks and display miner info like this, since it would require coinbase transaction lookup for each block.