Initial changes to provide both a preview and edit mode.
Editing can now be enabled or disabled.  Refs #105.
Added a delegate method to know when editing ends.
Fixed a circular methods call.
Removed the Reveal.app FWK.
Fixed a circular methods call.
Fixed the enabling/disabling content editing.
Removed a test log.
Added some extra info about the editing status.
Improved the protocol and the edit properties a bit. #105
Last commit had an incomplete line of code and an error in the web callbacks handler (#105).
Fixed some demo app code (#105).
Removed unused code.  The title is no longer set by this VC.
Small additions.
Removed some unused old code. #105
Changed a variable name to better reflect its purpose. #105.
Improved the code to have custom inputAccessoryViews for UIWebViews.
Removing unnecessary code. #105
Fixed some coloring and positioning issues.
Added some improvements to the keyboard operations. #105