We now use qa-global.js for all the in-page JS (except for qa-admin.js
which regular visitors don’t need).

Clean up some of the JS code

qa-include/app/page.php can now be require()’d without side effects.
Closes #213.

Use jQuery to simplify.

Fixes #267.

Moved into question page so that it’s not on other pages, and so we can
obtain correct answer count.

From PRs by @pupi1985 (unmergeable due to file structure changes).
Closes #69.
Closes #126.

No longer selects multiple items when URLs are substrings of other URLs

Set to Unix line endings in repo; the gitattributes file means they
will be converted to suit the user’s system.