Character Filtering in Blog Post Slugs

[brysont]

Using Pagekit 1.0.3 with PHP 7 and Apache 2.4.

Allowing the post slug to auto-generate from the title on save (a GREAT feature) does not properly account for punctuation in titles. Example...

This title: Jaylon Smith: He's Got The Rush, But No Interceptions?
Makes this slug: jaylon-smith-he-s-got-the-rush,-but-no-interceptions

The comma isn't such a big deal, but since we're on the subject, it should be filtered out. But the apostrophe in "He's" being transformed into a hyphen is just bad seo; should've been stripped and not replaced.

The proper slug of that title should be: jaylon-smith-hes-got-the-rush-but-no-interceptions

Haven't test other special characters or punctuation, though I suspect special characters are handled just fine (like the question mark was).

Thanks.