Rework `master` url discussion.
Rework `master` url discussion.

antonoal/sparkling,yieldbot/flambo,gorillalabs/sparkling,cswaroop/sparkling,chrisbetz/sparkling,jbtv/sparkling,gorillalabs/sparkling,cswaroop/sparkling,chetmancini/flambo,chrisbetz/sparkling,gorillalabs/sparkling,cswaroop/sparkling,QAston/flambo,chrisbetz/sparkling,jbtv/sparkling,antonoal/sparkling,cswaroop/sparkling,senor-hadoop/flambo,gorillalabs/sparkling,jbtv/sparkling,gorillalabs/sparkling,kul/flambo,jbtv/sparkling,arzig/flambo,antonoal/sparkling,chrisbetz/sparkling,antonoal/sparkling,anujsrc/flambo