Twenty Fifteen: Add Continue Reading link to excerpts

[kraftbj]

In content-search.php, the_excerpt() is used to output excerpts in the search listing. For auto-excerpts, Core adds [...]. Manual excepts lack this or another visual indicator that there is additional content behind the listing.

In Twenty Ten and Twenty Eleven, manual excerpts added a "Continued Reading" link. #13361 I didn't find a discussion on the lack of in Twelve, Thirteen, Fourteen.

Attaching patch that adds a Continued Reading link. The CSS already includes the fix from #27908.

[kraftbj]

Add Continued Reading link

[kraftbj]

Code standard correction and adding the is_admin check for the auto-excerpt.

[iandstewart]

This adds a lot more complexity when trying to read functions.php for not a lot of gain for most people. It could be a really cool set-it-and-forget it plugin though. It might be neat to see more "Extras" plugins for default themes.

Marking as wontfix with hopes for a plugin!