update
remove s
split broadcast's shared code
fix broken code
fix is_executed()
broken lines
fix scaffolding at the end
organized accept and execute
stub for ignore old instances
fix PREPARE_REQUEST
made very good progress
logic for locks
timeout handler,  in proposal queue?
change sender to server_id
manage largest_accepted_proposal, get_v as client_request,  check message type agreement!
Merge pull request #1 from kanitw/kw

Minor refactor