#32 allow non modified keys for tab switching

[Sean Dague]

I was able to hack my .ayttm/prefs file to allow just
Right & Left for tab switching, but it is impossible to
do that through the ayttm interface (a modifier key is
required).

It would be nice to allow right <-> left to work via
this interface (especially as up & down have special
meaning as well).

Just a thought.

[Colin Leroy-Mira]

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you mean you never use left/right to navigate in your text ?
I think such a change would be power-user reserved... Hence
editing prefs file is ok :)