Make sure that the old insertTags of mediawiki.action.edit.js works with each textarea or text input field on a page.
Note. Using input:text, because input[type=text] doesn't return the input's with no type set.
This fixes
bug 31682, where Extension:CharInsert wasn't working on upload pages anymore and
bug 31566, where Extension:Proofread's header and footer fields didn't work icw CharInsert