Choosing a Template Does Not Populate Editor
After installing and activating the editor everything seemed to be working until we tried to use a template. When we went into a contact record and clicked Actions-->Send an Email and then selected a template from the Use Template drop down the Subject line populated but the editor window remained blank. The same happens when you go to Actions-->Print/Merge Document. Interestingly, in the latter scenario if you click Preview after choosing the template, the document will display the contents of the template. It just is not editable because it doesn't load in the editor window.
I have tried to do some troubleshooting and it seems like Civi is having trouble finding the window to insert the HTML into. I don't know if this is because the other editors load in an iframe and Summernote doesn't, or some other cause. But that was as far as I was able to get with my investigation.