TB-6709.  We really don't need to use ZSSTextView.  All that buys us is line numbers in the source view.
TB-6709.  We really don't need to use ZSSTextView.  All that buys us is line numbers in the source view.

tipbit/ZSSRichTextEditor,tipbit/ZSSRichTextEditor,tipbit/ZSSRichTextEditor,tipbit/ZSSRichTextEditor