Adds assertion error messages for HDWallet
Prefer Array.prototype.slice over map
Merge pull request #141 from dcousens/slicenotmap

Prefer Array.prototype.slice over map
Merge pull request #139 from dcousens/eckeystrict

Migrates ECKey to stricter API
Merge pull request #142 from dcousens/asserts

Adds assertion error messages for HDWallet
Migrates Address to stricter API subset
Adds error messages and better version checking
Removes Address.fromPubKey and improves test vectors
Assert uses strictEqual instead of direct comparison
Fixes Transaction.addOutput() param handling to match documentation

Now (horrendously) supports other networks
Removes resolved TODO
Uses typeof address === 'string' instead
Adds working implementation of Script.createP2SHMultisigScriptSig