added html edit

add btn with data-edit="html" for html editing
adding format block command
adding buttons with command formatblock
Merge branch 'master' of github.com:jd0000/bootstrap-wysiwyg into html-editor

Fixed it up a little and cleaned it to make it fix with the rest of the recent code change.

Added an example file too.
Merge branch 'master' of github.com:evaldobarbosa/bootstrap-wysiwyg into dev

Conflicts:
	index.html

changed 'comm' to 'format' instead. Created example for this too.

Note, from the original, code and small didn't work, but added h[1-5] and will add some more with examples later.
Fixes issue #4

Updated cleanHtml() to toggle the html "pre" output, that was introduced previously, before outputting the HTML to the browser. This means that you can now export HTML using cleanHtml() while the code window is open and it will work!

Updated html-editor example to use the command.
Added ability to send bool into cleanHtml so that if the editor is inside a form, it will allow you to move the image tags to their own input elements.