csegames/cu-ui — pull request #34 by Mehuge (2014-12-18 00:40:58+00:00)
Title: Fix up mapping of ' (apostrophe) and ` (grave).  Also map # (222) which ...

...does not have an equivalent DX code to undefined. When accepting keypress for a mapping, if mapped dx code is undefined, ignore that keypress (so user is forced to pick a different key).