Ctrl+Arrow shortcuts taken by window manager on OS X

[jdpage]

On OS X, the various Ctrl+Arrow shortcuts are grabbed by the window manager by default, so I can't make the board smaller.

[NotGyro]

I might implement configurable controls but then that would either require a bunch of string-handling work in C (yuck) or another dependency for this teeny tiny project (also yuck). Leaning towards the latter, since there are some really lightweight ini libraries for C, but still...