Twenty Fifteen: bring back the border between post navigation links we lost in the_post_navigation changes.

Props iamtakashi, fixes #30414.



git-svn-id: https://develop.svn.wordpress.org/trunk@30479 602fd350-edb4-49c9-b593-d223f7449a82
Correct an SQL syntax error introduced in r30158. Adds tests.

Fixes #30339
See #18962
Props julien731


git-svn-id: https://develop.svn.wordpress.org/trunk@30480 602fd350-edb4-49c9-b593-d223f7449a82
WordPress 4.1-beta2


git-svn-id: https://develop.svn.wordpress.org/trunk@30481 602fd350-edb4-49c9-b593-d223f7449a82
Twenty Twelve and Thirteen: Use proper way to get customizer settings values.

Props obenland, kdoran. Fixes #29577.

git-svn-id: https://develop.svn.wordpress.org/trunk@30482 602fd350-edb4-49c9-b593-d223f7449a82
Media a11y: Don't set role=checkbox for the attachment details view.

Some unnecessary attributes were inherited from the attachment view, which created difficulties with screen readers.

fixes #30390.


git-svn-id: https://develop.svn.wordpress.org/trunk@30483 602fd350-edb4-49c9-b593-d223f7449a82
4.1-beta2-30484


git-svn-id: https://develop.svn.wordpress.org/trunk@30484 602fd350-edb4-49c9-b593-d223f7449a82