I see there is the capability to check image sizes, for my purposes, I'd love to be able to restrict file dimentions as well as sizes. eg. Height and width restrictions, especially so it doesn't throw the format of the rest of the site out!
Also, at the moment, I think the RTE is difficult to implement if you need it in several areas with different configurations. For example, I want to use it in a location for our Product managers to be able to upload images, the images should be uploaded to a specific path, with an image restriction of 300x300 pixels. And I will use it for example to add news items to the front page, where the images will be uploaded to a different path, again with images limited to 150x150 pixels. It would be nice to 'include' a specific/seperate setup/config file before including the main code. For the time being I will make modifications for my needs, I'm not sure if these are requirements that others may have!
Otherwise, awesome code! I see so much potential and effort involved ... it makes me jealous! I'm currently just a follower, I'd love to be an implementor like you! You've worked DAMN hard on all your code, and we just follow, like puppets ... be encouraged!
Regards from South Africa!