Merge commit 'b13998f2b482ff0ebe96cd683801758a01d10799' * commit 'b13998f2b482ff0ebe96cd683801758a01d10799': Clarify some comments on individual key codes.
Merge commit 'b13998f2b482ff0ebe96cd683801758a01d10799' * commit 'b13998f2b482ff0ebe96cd683801758a01d10799': Clarify some comments on individual key codes.