Whitespace breaks date sorting in Firefox

[markhobson]

Whitespace around dates breaks sorting in Firefox, but is fine under Chrome:

https://jsfiddle.net/markhobson/4qmhgzwe/6/

A cursory glance indicates that new Date(date) in tablesort.date.js is not cross-browser compatible:

Firefox:

> new Date(' 2000-01-02 ');
< Invalid Date

Chrome:

> new Date(' 2000-01-02 ');
< Sun Jan 02 2000 00:00:00 GMT+0000 (Greenwich Mean Time) {}

[moseslecce]

I would think the responsibility of the data to be appropriately formatted is outside of the scope of the sorting library. Should the library really sanitize all of the inputs?

[tristen]

Should the library really sanitize all of the inputs

Agree. Pull request happily accepted.