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* upgraded `mochify` for dev deps
* removed semicolons per http://cryptocoinjs.com/about/contributing/#semicolons
* removed `terst` per http://cryptocoinjs.com/about/contributing/#testing
* removed `binstring` from dev deps
* added travis ci
* added coveralls
* upgraded `bs58` from `0.3.x` to `^1.0.0`
* removed `crypto-hashing` dep
* `coinstring()` renamed to `cs.encode()`
* added methods `createEncoder()` and `createDecoder()`
* changed method signature of `encode(version, payload)` to `encode(payload,version)`
* changed method signature of `decode(version, base58str)` to `decode(base58str, version)`
* added method `createValidator()`
* changed method signature of `validate(version, base58str)` to `validate(base58str, version)`
* renamed method `validate()` to `isValid()`
* renamed return from `decode()` object field `bytes` to `payload`
* added `Buffer` support for version input => BIP32 support