Add back missing var definition in wplink.js, props TobiasBg, see #24067
Built from https://develop.svn.wordpress.org/trunk@27084


git-svn-id: http://core.svn.wordpress.org/trunk@26957 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Minor cleanup (jshint) of wp-fullscreen.js and /wordpress/plugin.js, see #24067
Built from https://develop.svn.wordpress.org/trunk@27085


git-svn-id: http://core.svn.wordpress.org/trunk@26958 1a063a9b-81f0-0310-95a4-ce76da25c4cd