Allow polling for input, correctly #118
Merged
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This pull-request DROPS SUPPORT FOR WINDOWS, but adds the ability to detect when there is pending console input ready to be read.
This closes #117.
I've tested on Linux, I think the other platforms are probably okay. But who knows?
Feedback most welcome. I guess it will come if it affects people if this is broken then playing zork will fail. If this works we've got access to more console-based games.