Astarbase v5 (Shiden only)

• Shiden astarbase is now upgradable and it queries original contract as external base #39
• isRegister() is changed to be view #43

Astarbase v3 (with ECDSA and stakerStatusOnContract)

• The contract v3 supports check per contract stakerStatusOnContract(contract_id, account)
• Shiden contract is now same as on Astar and it is upgradable
• Shiden contract is new and there are no registered users
• Shiden Frontend supports registration for ECDSA accounts
• Astarpass Frontend supports registration for ECDSA accounts
• Shibuya Frontend is built from main branch
• Astarbase documentation is updated to cover stakerStatusOnContract
• Medium article covering example ERC20 use for Astarbase
• Contract addresses here