Switch off code highlighting for now
Switch off code highlighting for now

- Blur doesn't work in the source mode of ckeditor. This has to do with
  the codemirror plugin, which basically replaces the whole editor with
  codemirror. But the blur event (triggered by codemirror) doesn't end up
  in our code

torinfo/xerteonlinetoolkits,thexerteproject/xerteonlinetoolkits,torinfo/xerteonlinetoolkits,thexerteproject/xerteonlinetoolkits,thexerteproject/xerteonlinetoolkits,torinfo/xerteonlinetoolkits,thexerteproject/xerteonlinetoolkits,torinfo/xerteonlinetoolkits,torinfo/xerteonlinetoolkits,thexerteproject/xerteonlinetoolkits