Prevent sort2Hash from adding extraneous entries to browser history

[alexweissman]

Addresses userfrosting/UserFrosting#712 by using window.location.replace to update the browser URL only, rather than window.location.hash, which modifies the browser history.

Before you merge, a few things:

• I haven't written any automated tests for this, as I'm not really familiar with qunit. It seems to work fine in UserFrosting, including scenarios with multiple tablesorters on the same page;
• It's possible that these additional history entries might be considered a "feature" for some users; in that case we should probably make this a configurable option for the sort2Hash widget;
• I don't know if this will cause adverse reactions with other widgets/features that may rely on the hashed URL being added to the browser history.

[Mottie]

Hi @alexweissman!

Thanks for the code... I've been really bad about writing unit tests for everything, mostly widgets, so don't worry.

I think I'll go ahead and merge this, but I'll add an option to allow the developer to set the behavior.

[Mottie]

Added in f0426f8.