What you could do is create your userscript and symlink it to /usr/share/unity-webapps/userscripts/unity-webapps-$NAME/$NAME.user.js:

($MYSCRIPTPATH is the full path to your script, probably somewhere in your home directory;$NAME is the name of your script)

sudo mkdir /usr/share/unity-webapps/userscripts/unity-webapps-$NAME
sudo ln -s $MYSCRIPTPATH /usr/share/unity-webapps/userscripts/unity-webapps-$NAME/$NAME.user.js


You'll also need to manually create a manifest file on /usr/share/unity-webapps/userscripts/unity-webapps-$NAME/manifest.json - you can just copy one from the other apps in the userscripts dir and modify the values according to your webapp.

How to create a local webapp userscript
What are sources where I can learn how to use GeoServer?

I know of these two sites:


http://geoserver.org/ - which in fact is not working (at least at the moment)
http://workshops.opengeo.org/geoserver-intro/ - not only (tutorials) for GeoServer


But I am interested in more complex information, and not to read only documentation.
