DHIS2 App: edit custom js and css

Hi all,

we want to share with the community an app that allows to edit the
custom javascript and css files that can be added to the DHIS instance
(I mean these files

The app allows to edit the files directly in the browser with an
embedded javascript editor (ACE Editor), so it is not needed to
manually upload the files.

Take care of cache: if the files are modified and you cannot see the
modifications, clean browser cache. If using nginx, the files can be
also cached by nginx.

The app is attached in this email, but if we can upload it to a common
repository please tell us.