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How to build a new application

The 'emptyapp' application can be used to create a new application from scratch.
Just copy the 'emptyapp' folder from the phpPeanuts folder to become a
new subfolder also directly in the phpPeanuts folder.
Then change all references to emptyapp in the files in the new folder
to the name of the new folder.
Then copy the 'emptyapp' folder in the classes folder to become another
empty folder directly in the classes folder.
Finally make a new hyperlink and a new printSubmenu line in the
'skinMenuPart.php' file in the includes folder referring the new folder.