Remove references to unused globals. props jeremyfelt. fixes #24984.
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Add javascript files deleted in [25013] to $_old_files. See #23486.

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Remove unused cat JavaScript file. props carldanley. fixes #24989.
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Twenty Fourteen: first pass at matching code standards achieved with Twenty Thirteen development. See #24858, props obenland.
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TinyMCE: always use js/editimage.js in the custom 'editimage' plugin, same way as the default TinyMCE plugins. Fixes #24999.
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Twenty Fourteen: second pass at matching code standards achieved with Twenty Thirteen development. See #24858, props obenland.
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