Upgrade to Pyramid 1.6.1
Upgrade to Pyramid 1.6.1

alex/warehouse,karan/warehouse,dstufft/warehouse,alex/warehouse,pypa/warehouse,alex/warehouse,wlonk/warehouse,pypa/warehouse,dstufft/warehouse,dstufft/warehouse,dstufft/warehouse,alex/warehouse,wlonk/warehouse,pypa/warehouse,karan/warehouse,alex/warehouse,karan/warehouse,karan/warehouse,karan/warehouse,wlonk/warehouse,pypa/warehouse