fixed issues with testnet and createTx
custom changeAddress for wallet.createTx()
added tests for createTx testnet and createTx custom changeAddress
custom changeAddress has full integration test
Merge pull request #159 from williamcotton/master

fixed issues with testnet and createTx
Clarifies Transaction.addOutput param documentation
Restricts TransactionIn/Out constructor parameters
Removes untested functions
Fixes assertion message grammar and adds a space
Script input handling more consistent w/ project
Renamed Network to Networks
Fixes addInput(Address, Number) functionality
Adds to/fromHex for Script
Adds standard Script.create*ScriptPubKey and tests
Renames Script.create*OutputScript to Script.create*ScriptPubKey
Adds Address.[from/to]ScriptPubKey and tests
Removes Script.createOutputScript, Script.getToAddress
Removes convert dependency