* Structs and wire messages for HTLCs
* Wire protocol for a state machine with no blocking(!!!)
(I will write the state machine)
TL;DR: Can do multiple HTLC modifications in-flight, dead simple wire
protocol. Both sides can update their Commitments unliaterally without
waiting for the other party's signature. Will have basic/preliminary
notes in the README
* Added **swp to .gitignore because of vim annoyances
* FundingSignAccept and FundingSingComplete had *[]btcec.Signature and
instead it's now []*btcec.Signature to match other slice types.
* Refactored lnwire's when doing readElement/writeElement on slices
* Added field
* Renamed FundingAmount and ReserveAmount to specify in FundingRequest
and FundingResponse that it is for RequesterFundingAmount or
ResponderFundingAmount
* Added PaymentAmount field to FundingRequest
* Added MinDepth field to FundingRequest and FundingResponse
* Fixed .Serialize() to show inputs/etc. only if there are fields
available (prevents trying to dereference nil value)
* Add a bunch of Validate() conditions
* MASSIVE REFACTOR of tests (removed tons of redundancy)
Running "go test -v" will show the serialization and deserialization.
Doing the rest of the wire stuff should be *much* faster since I figured
everything out...
