* final engine changes
* migration to v13
* adding and removing pending transitions
* epoch_transition_for
* port snapshot to new engine methods
* final validator set interface
* fix compiler errors
* revert v13/epoch_depth transition
* make call on new epoch
* rolling finality checker
* tests for finality checker
* constructing finality proof upon pending transition
* fix warnings and finality proof checking
* fix compiler warnings in tests
* test fixes
* don't include genesis in finality checking
* change snapshot test chain building logic
* minor refactorings
* fetch epoch transition based on parent, fix divide-by-zero in SimpleList
* fix formatting
* fix ABIs and finality checking in snapshot restoration
* encode signal number in proof
* create more blocks at the end of tests
* update gist to accurate contract code
* test for epoch_transition_for
* fix tests with immediateTransitions parameter
* disable force flag after forcing
* rename ValidatorsChanged to InitiateChange and finalizeSignal to finalizeChange
* a few more validator set tests
* move native_contracts ABIs to JSON files, add urlhint
* port hash-fetch to futures, fix tests
* fix dapps compilation, defer async port to later
* activate dapps server in the light client
* better formatting
* separate modules for consensus snapshot chunks
* bulk of authority warp logic
* finish authority warp implementation
* squash warnings and enable authority snapshot mode
* test harness for PoA
* fiddle with harness
* epoch generation proof fixes
* update constructor code
* store epoch transition proof after block commit
* basic snap and restore test
* use keyvaluedb in state restoration
* decompress chunks
* fix encoding issues
* fixed-to-contract-to-contract test
* implement ancient block import
* restore genesis transition in PoW snapshot
* add format version method to snapshot components
* supported version numbers in snapshot_components
* allow returning of ancient epoch transitions
* genesis hash mismatch check
* remove commented code
* ECDKG protocol prototype
* added test for enc/dec math
* get rid of decryption_session
* added licenses
* fix after merge
* get rid of unused serde dependency
* doc
* decryption session [without commutative enc]
* failed_dec_session
* fixed tests
* added commen
* added more decryption session tests
* helper to localize an issue
* more computations to localize error
* decryption_session::SessionParams
* added tests for EC math to localize problem
* secretstore network transport
* encryption_session_works_over_network
* network errors processing
* connecting to KeyServer
* licenses
* get rid of debug println-s
* fixed secretstore args
* encryption results are stored in KS database
* decryption protocol works over network
* enc/dec Session traits
* fixing warnings
* fix after merge
* on-chain ACL checker proto
* fixed compilation
* fixed compilation
* finally fixed <odd>-of-N-scheme
* temporary commented test
* 1-of-N works in math
* scheme 1-of-N works
* updated AclStorage with real contract ABI
* remove unnecessary unsafety
* fixed grumbles
* wakeup on access denied
* fix after merge
* fix after merge
* moved contract to native-contracts lib
