JavaScript breaking HTML entities

[xibe]

(this is a follow-up ticket to the first part of ​this wp-testers message)

The Publish section of the Edit screen for a published post displays an "Update Post" button, which in French is translated using the string "Mettre à jour l’article".

It works fine on first loading, but it breaks easily: just click the Edit link for the timestamp and cancel, and the the button's label goes from "Mettre à jour l'article" to "Mettre à jour l’article", literally.

I'm guessing this is due to JS not parsing HTML entities.

[xibe]

Label of the button is updated after the timestamp section is openned/closed.

[nbachiyski]

Make jQuery run all attribute values through a span, so that entities are parsed

[azaozz]

(In [9809]) Filter HTML entities when inserting strings with js, includes patch by nbachiyski, fixes #8254

[azaozz]

(In [9811]) Remove unused bits, see #8254

[azaozz]

(In [9836]) Improve filtering of HTML entities from translated strings used in js, see #8254