Removed: Mocha, ExceptJS, JSCoverage from the package.json; Removed test/test.md
Removed compile.js
Removed compile.js link in editor.html; Added docco docs;
Added some css for the control buttons (with toggle function). Added a event listener to the bold button.
Utils has now a function that returns the child element by a tag name. The preview gets now updated if the user changes
the content of the editor.