Move some contextual alternates to stylistic alternates

[rhendric]

Some of the things Inter does with contextual alternates create confusion, if the user needs to distinguish between the two-character -> and the one-character →. Other things, like vertically aligning brackets, don't create confusion; the same character is used, just presented in a more visually pleasing way. I'd like to keep the latter but drop the former, but since both are controlled by calt, I have to take or leave them both.

Would you consider changing the number-of-characters-altering alternates to stylistic alternates, or some other appropriate feature tag, which can be separately controlled?