Convert directory from an instance variable into a class variable
Convert directory from an instance variable into a class variable

This variable is referenced from a class attribute, so it should be a
class variable, not an instance variable. I'm actually not sure how this
ever worked. o_O

hoangkien/twurl,twitter/twurl,VitaliyKulikov/twurl,adampats/twurl,mdeschamps/twurl,bcomnes/twurl