Updated blankslate behavior to remove a warning in 1.9.1
Updated blankslate behavior to remove a warning in 1.9.1

--HG--
branch : devel

newcontext/rubypython,halostatue/rubypython,halostatue/rubypython,newcontext/rubypython,newcontext/rubypython,steeve/rupy,halostatue/rubypython,steeve/rupy