Do not rely on parent repository in ZipRepository
Do not rely on parent repository in ZipRepository

It just breaks jar: URLs by adding a slash after the zip file path
and doesn't buy us anything as ZipFile expects a local file anyway.

ringo/ringojs,Transcordia/ringojs,ringo/ringojs,oberhamsi/ringojs,ashwinrayaprolu1984/ringojs,ringo/ringojs,ashwinrayaprolu1984/ringojs,oberhamsi/ringojs,ashwinrayaprolu1984/ringojs,Transcordia/ringojs,oberhamsi/ringojs,Transcordia/ringojs,ashwinrayaprolu1984/ringojs,ringo/ringojs,Transcordia/ringojs