Add backwards-compatibility for jQuery versions before 1.6

[akalata]

No description provided.

[nebrot]

jQuery 1.5 is nearly seven years old, this is a huge period in world wide web.
Upgrade to at least jQuery 1.7 for current 1.0.3, see https://github.com/johnpolacek/stacktable.js/blob/master/stacktable.js#L11

[akalata]

I would love to! Will you be paying my rate to test all of the other javascript that exists on my client's website to ensure that it all works correctly?

Snark aside, I get it. But not everybody has the ability to go changing the jQuery version of their projects or dealing with noConflict. It was an simple enough change, and if the maintainer doesn't want to use it, that's fine too. Maybe it will help somebody else stuck supporting a technically-supported-but-10-years-out-of-date CMS.