Change default setting of `sp-autoinsert-if-followed-by-same` from 2 to 3. This will make it more strict about the pair balance.
Do not extend the pair overlay after the closing pair if we insert something in the post-handler.
Fix bug when an empty string-like pair matches the closing pair with opening pair of the next one: $|$ $asd$
If sgml tag is not completed, return the <> pair instead. Special case for "<" removed from `sp-get-thing`.
Add option to highlight sexps if the point is immediately inside it: `sp-show-pair-from-inside`