Release v0.15.0

New Features

• new logic for staking and cancel of staking
• add new function of creating new key and modify verison to v0.15.0

Bugfixes

• double-sign: lack of logic for comparing and canonical blocks
• pledge and cancel pledge,switch block number format
• return error repeating element
• new cancel pledge logic
• use weight param
• validator proxy pledge logic
• error field output format
• exist other pledge logic
• emptyblock-punish: dealing with empty block penalty error display issues
• handle empty block punish logic

Performance Improvements

• double-sign: add eth_getPunishedInfo api
• double-sign: add fork handler logic
• set blocknumber of v0.15.0

To

• core: The amount of pledge validator list is abnormal
• core: Pledge amount count logic
• close exchange flag logic
• after revocation become validator again without modifying the weight
• amount judge print error format
• test switch block number and cancel pledge number
• insufficient validator amount, abnormal repledge
• forks block number param location
• staker pledge logic optimize
• staker pledge return error logic
• range break
• punish before restore coefficient
• punish address judge