removed some problematic chars from spellchecker plugin

which are causing problems for compressor

Author: aljosa

tinymce/static/tiny_mce/plugins/spellchecker/editor_plugin.js

@@ -98,6 +98,7 @@ def render(self, name, value, attrs=None):
                 'debug': False,
             }
             compressor_json = simplejson.dumps(compressor_config)
+            html.append(u'<script type="text/javascript">tinyMCE_GZ.init(%s)</script>' % compressor_json)
 
         if pos != -1:
             html.append(u'''<script type="text/javascript">