init import from old mailr project (http://svn.littlegreen.org/mailr/trunk)

public/tiny_mce/plugins/preview/readme.txt

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+ Preview plugin for TinyMCE
+-----------------------------------
+
+Installation instructions:
+  * Copy the preview directory to the plugins directory of TinyMCE (/jscripts/tiny_mce/plugins).
+  * Add plugin to TinyMCE plugin option list example: plugins : "preview".
+  * Add the preview button name to button list, example: theme_advanced_buttons3_add : "preview".
+
+Initialization example:
+  tinyMCE.init({
+    theme : "advanced",
+    mode : "textareas",
+    plugins : "preview",
+    theme_advanced_buttons3_add : "preview",
+    plugin_preview_width : "500",
+    plugin_preview_height : "600"
+  });
+
+Configuration:
+  plugin_preview_width - Preview window width. Defaults to 550.
+  plugin_preview_height - Preview window height. Defaults to 600.
+  plugin_preview_pageurl - Custom preview page URL relative from theme
+                           use "../../plugins/preview/example.html" for a example.