Adding Read instances to script data types
Adding Read instances to address and signature types
Style changes
Merge pull request #29 from plaprade/read-instances

Read instances
Merge pull request #30 from plaprade/mnemonic-style

Style changes
The normalized key library now produces Addresses instead of base58 encoded Strings
Merge pull request #31 from plaprade/base58-to-address

The normalized key library now produces Addresses instead of base58 encoded Strings