Remake TinyMCE initialization

[AlexT]

Now Tinymce area is attached to all predefined list of areas:

$this -> aTinyMceSelectors = array('group_edit_html', 'story_edit_area', 'classfiedsTextArea', 'blogText', 'comment_textarea', 'form_input_html');

this mechanism is wrong and has to be redesigned: every code where tinymce is used must attach tinymce area explicitly, also make sure that tinymce area is initialized once, or different global variables are used at least.

---

Also it must be a possibility to easily integrate different html editor