Merge branch 'master' of https://github.com/defcronyke/coinswap-arbitrage

Conflicts:
	coinswap.go
Merge branch 'master' of https://github.com/defcronyke/coinswap-arbitrage

Conflicts:
	coinswap.go
Added a proposed arbitrage_data structure

It's in arbitrage_data.go and an example of
using it is in test.go