Be smarter about text replacement; don't replace regular periods unless they fit a match.

Signed-off-by: Jeston Tigchon <jesstech@toasterdesigns.net>
Update Safari extension to v1.2

Signed-off-by: Jeston Tigchon <jesstech@toasterdesigns.net>
Update Chrome extension to v1.2

Signed-off-by: Jeston Tigchon <jesstech@toasterdesigns.net>