Avoid JSHint errors. Use dot notation when able and declare pwsL10n as a global.

props jorbin.
fixes #25870.

Built from https://develop.svn.wordpress.org/trunk@26065


git-svn-id: http://core.svn.wordpress.org/trunk@25986 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Avoid JSHint errors in color-picker.js. One `var`, single quotes, add missing semicolon, declare wpColorPickerL10n as global.

props jorbin.
fixes #25877.

Built from https://develop.svn.wordpress.org/trunk@26067


git-svn-id: http://core.svn.wordpress.org/trunk@25987 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Avoid JSHint errors in admin comment.js. Declare globals, use single quotes.

props jorbin.
fixes #25885. 

Built from https://develop.svn.wordpress.org/trunk@26068


git-svn-id: http://core.svn.wordpress.org/trunk@25988 1a063a9b-81f0-0310-95a4-ce76da25c4cd