History of EmuControl::key 1 change

In client/emu_control.py, lines 120–135 on 4c0b050e9a255596eb36b5d40e9ad07da4a9e0a3f8827cf139b9ee8cf9bfc591. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 120,135:client/emu_control.py.