Editor agnostic

[brianteeman]

replaces the tinymce specific target with adminform which should work with all editors

fixes #50

[obuisard]

I was wondering if it is accessible to put the focus on the form here.

[brianteeman]

accessible - no idea but then nothing is with this tour

working - yes I tested with no-editor, tiny and codemirror

[obuisard]

I will work on the conflicts Brian

[brianteeman]

conflicts resolved