Clean up the new svg-painter.js so that it passes our jshint; see #25858. Props jorbin.


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git-svn-id: http://core.svn.wordpress.org/trunk@26043 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Reinstating this fix for the issue described in #18868, wherein some versions of Chrome open the About/"W" dropdown menu inadvertantly, like when clicking a select element. Fix was removed in the initial MP6 commit r26072, this brings it back. See #25858; props azaozz.


Built from https://develop.svn.wordpress.org/trunk@26132


git-svn-id: http://core.svn.wordpress.org/trunk@26044 1a063a9b-81f0-0310-95a4-ce76da25c4cd