v3.0.0

Added

• Add Billplz\Contracts interfaces for easier integration.

Changes

• Update Laravie Codex to v4.0+.
• Change Billplz\Base\Bank to Billplz\Base\BankAccount.
• Rename Billplz\Base\Bank::checkAccount() to Billplz\Base\BankAccount::check().

Removed

• Remove Billplz\Client::check(), use Billplz\Client::bank()->check() instead.
• Remove Billplz\Base\Check, use Billplz\Base\BankAccount.