Update CKEditor to version 4.5.9

UI/WebServerResources/ckeditor/plugins/base64image/README.md

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+Base64Image Plugin for CKEditor 4
+=================================
+
+Created by ALL-INKL.COM - Neue Medien Münnich - 04. Feb 2014
+
+Adds images from local client as base64 string into the source without server
+side processing. You can also add external image urls into the source.
+
+## Requirements
+The Browser must support the JavaScript File API.
+
+## Installation
+
+ 1. Download the plugin from http://github.com/nmmf/base64image
+
+ 2. Extract (decompress) the downloaded file into the plugins folder of your
+	CKEditor installation.
+	Example: http://example.com/ckeditor/plugins/base64image
+
+ 3. Enable the plugin by using the extraPlugins configuration setting.
+	Example: CKEDITOR.config.extraPlugins = "base64image";