Merge pull request #1 from kayellpeee/master

writes tests and file structure for first basic sprint
starts to build tests for transactions
moves transaction into seperate file and adds spec structure
adds tests + file structure for Transactions sprint
adds tests for building and propagating transactions
test references correct file
removes unecessary test in makeWallet
removes unecessary dependencies and clarifies readme
Merge pull request #3 from kayellpeee/transactions

Transactions