make project_pythondeps a join table
make project_pythondeps a join table

ekeroid/hopsworks-chef,hopshadoop/hopsworks-chef,ekeroid/hopsworks-chef,ekeroid/hopsworks-chef,hopshadoop/hopsworks-chef,hopshadoop/hopsworks-chef,hopshadoop/hopsworks-chef,ekeroid/hopsworks-chef