"A" and "D" keyboard presses no longer work in legacy validate

[jonfroehlich]

We switched the buttons to "Yes", "No", and "Unsure" from "Agree", "Disagree", and "Unsure" and also changed the key mappings to 'y', 'n', and 'u' from 'a', 'd', and 'u'.

Interestingly, 'a' seems to work sometimes still but not all the time. I was wondering if we could still keep the 'a' and 'd' keys (in addition to 'y' and 'n'--so redundant mapping) because 'a' and 'd' are on the left side of the keyboard and easier to access when the right hand is using the mouse.

[jonfroehlich]

Actually, it seems like the keyboard commands are just generally broken... I can't use 'z' to zoom in either. Is the minimap perhaps stealing keyboard focus?