Howto upgrade to nightly build

[joximu]

Hi

The changes from RC2© to RC3(or what's published from it until, now) *are* big. But the changes for an Update are not that big (a database field was added, some table records were added, some configuration variables were added) - but they are tricky to implement in an update script. Especially the things the setup routine does (changing the files which are already there) - they have to be implemented too.
A typical linux update for an application like this (in a RC status!!!) would be a "README.update" - I have the impression that here the update script is done for the big amount of newbies who don't know much about linux etc.