Whilst it was never my intention to move back to the way JBlogs was and use a local copy of TinyMCE, unfortunately the way that TinyMCE works means that you cannot add plugins to a version in a CDN. As a result, a local copy has been created and you can choose to use this version or the lightweight version which uses the CDN. The local version is superior in all ways apart from for speed and space.
With the local version there is an increase of about 400KB. I will not be including this by default but I will keep a configuration that is setup for this available too. I found that this is the best way to allow users to insert images since plugins like JustBoil.me allows users to quickly insert images.