v0.11.1a0

Starknet:

• Upgrade Cairo 1.0 version to v1.0.0-rc0
• Charged transaction fee is now based on an average Ethereum gas price instead of a single sample (estimation API is unaffected)
• API changes:
  • Remove the state root in get_state_update for pending blocks to allow faster responses in future versions
• Testing framework:
  • Allow declaring (and interacting with) Cairo 1.0 contracts.
    • Currently, the Cairo 1.0 ABI is not supported yet, so a Cairo 0 ABI should be supplied to declare() manually.
  • Split deploy() to two phases declare and deploy: deprecated_declare() (for Cairo 0 contract) or declare() (for Cairo 1.0 contracts) and deploy() (for both)
• Add current block hash to the Starknet Core contract (currently not verified by the Starknet OS):
  • Breaking change: The LogStateUpdate event's data is changed to include blockHash

Other changes:

• Change build system from CMake to bazel