servercli: integrate bitcore wallet; use it to build channel pubkeys
servercli: add 'setCommit' command
servercli: build transaction within 'setRefund' command
servercli: begin updating 'commit' and 'pay' for new server API
servercli: remove 'setPayment' mention in help
servercli: setRefund fixes, to match Transaction.js template expectations
servercli: fix refund TX building
servercli: fix help messages
servercli: finish up payment flow. fix several bugs.
serverd: add wallet dump support. scan for P2SH scripts. fix bugs.
serverd: fix more bugs
README: note status
serverd: store K1 signature, prior to use