keyboard commands should mirror the find/replace dialog

[caius]

In the standard find/replace dialog you can use a couple of key combo's to toggle the checkboxes. cmd-alt-i toggles "Ignore Case" and cmd-alt-r toggles "Regular Expression".

It would be useful to have Ackmate respond to the same key combos. So cmd-alt-i toggles "Ignore Case" and cmd-alt-r toggles "Literal Match".

[caius]

(Accidental) Dupe.