[wysiwyg] Integrated Morrigan

http://morrigan-editor.org/
[morrigan] Internationalised titles
[morrigan] More internationalisation
[morrigan] Default initialisation values
[morrigan] Set size
Merge remote branch 'origin/guimier-wysiwyg' into drogue-design

Conflicts:
	default/languages/en.json
	default/languages/fr.json
[WIP] Morrigan integration in interface
Merge branch 'master' into drogue-design
Merge remote-tracking branch 'origin/drogue-design' into guimier

Conflicts:
	index.php
[WIP] [channels] Worked on JavaScript class.