[backend] add cmd=wipepublishedlocked support, prepare for "wipe=" parameter
[api] trying to make the event class autoloading less fragile
[webui] replace project_or_package_link partial with a helper function

This allows much saner programming than in erb
[webui] rename patchinfo model to WebuiPatchinfo to avoid name clashes

Namespaces are fine, but somehow rails' autoload breaks them more often
than not ;(