Twenty Fourteen: better override for Background and Colors descriptions in Customizer, props obenland. See #25869.

git-svn-id: https://develop.svn.wordpress.org/trunk@26039 602fd350-edb4-49c9-b593-d223f7449a82
Use only one var per scope in our password-strength-meter tests.

props kadamwhite.
see #25187.


git-svn-id: https://develop.svn.wordpress.org/trunk@26040 602fd350-edb4-49c9-b593-d223f7449a82