A way to disable drag / drop images

[BrainFeeder]

I just discovered this wysiwyg editor and I implemented it in a project. I don't tend to use the editors image upload function in the near future.
I succeeded in removing the button from the toolbar, but when an image gets dragged for some reason, the editor shows the "Drag image here" message.

If the option to disable this functionality is allready in there somewhere, it should be added to the docs. If it is not implemented yet, it could be a nice enhancement.

As an addition I also noticed that the "Drag image here" message is not translated. The translation is in the locale file though: "dragImageHere: 'Sleep hier een afbeelding naar toe',"

[anton164]

@hackerwins just a headsup, the option is still not in the docs, this commit was the way I found it.

[smockensturm]

Not a big fan of the undocumented disableDragAndDrop: true option as this has the undesirable affect of disabling DnD for the entire document.

As we're not using Summernote at all to upload images, we have hidden the dropzone element with CSS thusly

.note-editor .note-dropzone { opacity: 0 !important; }

[lijinlar]

@smockensturm Thanks man.. that solved my issue, I was pulling my hair out all the way.