Replaced non-conventional `-Present` form in copyright headers with the more appropriate `-2021` version that is already used by the majority of the code base. Copyright header should indicate the years during which the specific file was modified.
* implement forked state/block support * merge support for containsOrphan; import cleanup; 80-column lines * add merge block header operations and slot sanity fixture * add epoch state transition tests; implement is_valid_gas_limit(), is_merge_block(), is_execution_enabled(), and compute_timestamp_at_slot() * implement process_execution_payload() and add merge deposit operations tests * add merge block sanity tests * add merge case to syncCommitteeParticipants * v1.1.0-beta.5 updates * reduce getTestStates-based memory usage; don't try to REST-serialize ExecutionPayload transactions without underlying support * add execution payload tests; switch var to let in tests/official/
Etan Kissling
tersec