Bitcoinjs-lib help with deterministc wallet
It looks like it is working. Go to https://www.coinomi.com/recovery-phrase-tool.html and make sure to enter the following:

BIP39 Recovery Phrase : eight better wealth display father cave suffer game sign health fit exchange noble tunnel poet remember owner letter submit illness cage calm dry noble

Coin : Bitcoin

BIP32 Derivation Path (In BIP32 Tab): m/0'/0

Result:

Derived Addresses  

m/0'/0/0`   169zFhK1WTuxfhgY6bmzE9zP1godCfZr2V
m/0'/0/1    17tdSW83Vjw23TdQsmZDtBAupan9WiGGd5
m/0'/0/2    17bYSjEXwZxMgVkRRt9pJgDgExiX8Xht3b