Twenty Fourteen: proper i18n and translator context for date formatted strings in archive template. Props Frank Klein and mako09, fixes #26367.

git-svn-id: https://develop.svn.wordpress.org/trunk@26576 602fd350-edb4-49c9-b593-d223f7449a82
Twenty Fourteen: remove transient usage in Ephemera widget to fix caching issues. Props obenland, closes #26210 and #26335.

git-svn-id: https://develop.svn.wordpress.org/trunk@26577 602fd350-edb4-49c9-b593-d223f7449a82
Add more .gitignore entries for unit test files.

props bpetty.
fixes #26375.

git-svn-id: https://develop.svn.wordpress.org/trunk@26578 602fd350-edb4-49c9-b593-d223f7449a82
Twenty Fourteen: CSS fixes, props celloexpressions. Fixes #26188.

 * Remove unnecessary color layer in header nav (same as header background).
 * Fix site description padding with header shadow.
 * Create the MediaElements players' time rail and volume container backgrounds with a semi-transparent color so that it adjusts with the player background color if that's changed.

git-svn-id: https://develop.svn.wordpress.org/trunk@26579 602fd350-edb4-49c9-b593-d223f7449a82