Update spec_helper_extensions to use Rails 3.x ::class_attribute.
Update spec_helper_extensions to use Rails 3.x ::class_attribute.

alexbeeken/calagator.org,nblackburn87/calagator,matthewkmayer/calagator,kerrizor/calagator,alexbeeken/calagator.org,matthewkmayer/calagator,matthewkmayer/calagator,jmcduffie32/calagator,Villag/dentonator,cp/calagator-1,L2-D2/calagator,reidab/calagator,VolunteerOdyssey/calagator,Eugator-Wranglers/calagator,oktober/calagator,bencornelis/calagator,shawnacscott/calagator,L2-D2/calagator,VolunteerOdyssey/calagator,dudleysr/calagator-workspace,cp/calagator-1,oktober/calagator,oktober/calagator,shawnacscott/calagator,L2-D2/calagator,kerrizor/calagator,CorainChicago/ActivateHub,eeeeeean/windchimes,bencornelis/calagator,shawnacscott/calagator,Eugator-Wranglers/calagator,dudleysr/calagator-workspace,bencornelis/calagator,jmcduffie32/calagator,jmcduffie32/calagator,reidab/calagator,iamBalaji/Calagator,iamBalaji/Calagator,CorainChicago/ActivateHub,iamBalaji/Calagator,shawnacscott/calagator,reidab/calagator,eeeeeean/windchimes,CorainChicago/ActivateHub,iamBalaji/Calagator,nblackburn87/calagator,kerrizor/calagator,cp/calagator-1,oktober/calagator,reidab/calagator,cp/calagator-1,L2-D2/calagator,kerrizor/calagator,nblackburn87/calagator,bencornelis/calagator,Villag/dentonator,jmcduffie32/calagator,Villag/dentonator,CorainChicago/ActivateHub,matthewkmayer/calagator,VolunteerOdyssey/calagator