Add make targets to clean and purge
Add make targets to clean and purge

karan/warehouse,alex/warehouse,dstufft/warehouse,pypa/warehouse,alex/warehouse,pypa/warehouse,karan/warehouse,dstufft/warehouse,wlonk/warehouse,dstufft/warehouse,wlonk/warehouse,pypa/warehouse,karan/warehouse,karan/warehouse,ismail-s/warehouse,ismail-s/warehouse,ismail-s/warehouse,wlonk/warehouse,alex/warehouse,ismail-s/warehouse,karan/warehouse,alex/warehouse,pypa/warehouse,dstufft/warehouse,ismail-s/warehouse,alex/warehouse