Update to TinyMCE 4.x
TinyMCE 4.0.24
Update to TinyMCE 4.x
Make TinyMCE4 buttons smaller
Fix Spell button with TinyMCE4
Allow <> characters in spellchecking text
Implemented image selector dialog for TinyMCE, css fixes in classic skin for TinyMCE4
Update to TinyMCE 4.0.28
Bring back "Add To Dictionary" feature
TinyMCE4: Fix spellchecker resume
TinyMCE4: small improvements
Merge branch 'tinymce4'

Conflicts:
	program/js/app.js
	program/js/editor.js
	program/js/tiny_mce/tiny_mce.js
	program/steps/utils/spell_html.inc