fixing generate script to account for multiple possible paths in protobuf
fixing generate script to account for multiple possible paths in protobuf

dparnell/cl-rethinkdb,nightshade427/cl-rethinkdb,rogersm/cl-rethinkdb,rogersm/cl-rethinkdb,orthecreedence/cl-rethinkdb,nightshade427/cl-rethinkdb,orthecreedence/cl-rethinkdb,dparnell/cl-rethinkdb