Rel #258

This begins implementation of the ref'd feature proposal.

Currently 'ethstats' support is removed because
that package relies heavily on access to a *node.Node.
Eventually I want to move that packages demands to
something that can be satisfied by an API instead.

Date: 2020-12-21 12:16:33-06:00
Signed-off-by: meows <[email protected]>

Conflicts:
	cmd/faucet/faucet.go

I'm reverting the HeaderAuthorGetter interface
solely to reduce diff size and complexity, both
for this PR and in general.

It doesn't mean I like it.

Date: 2020-12-28 07:47:24-06:00
Signed-off-by: meows <[email protected]>

Work was pending resolution of ethstats reporting
in conjunction with node attaching.

This has been resolved conceptually by
make them exclusive; you cannot activate ethstats
for the faucet's target attach node (since that
node can handle ethstats reporting all by itself).

Date: 2020-12-28 08:05:24-06:00
Signed-off-by: meows <[email protected]>

Date: 2020-12-28 08:08:25-06:00
Signed-off-by: meows <[email protected]>

Make sure flags aren't used in impossible ways.

Date: 2020-12-28 08:17:13-06:00
Signed-off-by: meows <[email protected]>

Date: 2020-12-28 08:24:18-06:00
Signed-off-by: meows <[email protected]>

Date: 2020-12-28 08:25:09-06:00
Signed-off-by: meows <[email protected]>

Date: 2020-12-28 08:37:41-06:00
Signed-off-by: meows <[email protected]>

Date: 2020-12-28 10:10:51-06:00
Signed-off-by: meows <[email protected]>

Faucet behavior previously effectively demanded
user configuration of bootnodes manually
to enable peering.

This disables NoDiscovery, thus
enabling discovery.

Date: 2020-12-28 10:19:05-06:00
Signed-off-by: meows <[email protected]>

Date: 2020-12-28 10:22:20-06:00
Signed-off-by: meows <[email protected]>

As noted in the comment on line 310, when
attaching to a remote client it may be that the
API says that chain id is 0 when the client
is not yet synced past the EIP155 activation
block height.

Requesting and switching on the genesis block
hash fixes this issue except for the foundation/classic
corner case (same genesis, different chain ids).

Date: 2020-12-29 05:14:04-06:00
Signed-off-by: meows <[email protected]>

This value would be useful and necessary only if
the target client were unsynced past the EIP155
activation height.

ChainID is used to disambiguate ETH/ETC chains.

Date: 2020-12-29 05:30:04-06:00
Signed-off-by: meows <[email protected]>