Fixed the order of text replacements

Proper order is necessary to do the intended text replacements.
Forms

Proposing to reword Inputs and Buttons with Forms. This way we can cover more than just couple of elements. Select feels like an outsider and textarea too, even though it's technically an input.

This will also be a perfect match with the rest :)

N.B. Something went wrong with my last proposal, sorry about that.
Merge pull request #415 from emiluzelac/patch-11

Reword Inputs and Buttons with Forms.
Merge pull request #387 from aahan/patch-1

_s: Switch the order of text replacements.

Change ensures the textdomain in `style.css` is not replaced with the theme name, but rather with the theme slug. Broken in 1f15c20.
Merge branch 'master' of https://github.com/Automattic/_s