Npm6 package lock.json

See https://twitter.com/maybekatz/status/905213355748720640

Set specific node.js version on travis build

Use different ports for lnd/grpc in case user already running lnd

Safely shutdown lnd with SIGINT.

Set all seed verification input as lowercase

Revert "Fix windows binary build"

Fix windows binary build

Adds "experimental" tag to the windows binary build so that it
recognizes `routing.assumechanvalid` flag.

Undo deadlock workaround

Fix autopilot + syncing speed.

By compiling with experimental lnd and setting --routing.assumechanvalid, autopilot is enabled and will start creating channels even before cfheaders are synced.

Support bech32 addresses which is max 90 chars long

https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki#bech32