Fixed a bug in the friends module (thanks djphil for the report)
Changed the installation to be \"upgradable\" so you dont need to uninstall the entire component to get the new version working. Means also database tables are only created if they do not exist yet and you dont loose your previous settings. But once again:
backup is always a good idea BEFORE you change anything ...
At the administrator main page of the component I added a small version check.