History of EmuControl::key 1 change

In client/emu_control.py, lines 120–135 on 398756c0e9b2f3532c7c81dd2fb3be39d579b1b0528363a3f5faf7c14b21ebd0. 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.