Locale string do not allow HTML

Fixes #24
Keep track of requests and prevent title change while in one

Possible fix for #22
Allow options to be extended via data attributes

Fixes #23
Merge pull request #28 from markcarver/issues/23

Allow options to be extended via data attributes
Merge pull request #27 from markcarver/issues/22

Keep track of requests and prevent title change while in one
Merge pull request #26 from markcarver/issues/24

Locale string do not allow HTML