Fix "undefined method forget_me!" for remember_me submodule
Fix "undefined method forget_me!" for remember_me submodule

Even after switching the order of `after_logout!` and `@current_user = nil` (https://github.com/NoamB/sorcery/issues/76), I was still getting this error when logging out. I needed to change `current_user` to `@current_user` for it to work.

rubenmoya/sorcery,trustyknave/sorcery,NoamB/sorcery,athix/sorcery,wasabia/bnbtripSorcery,Borzik/sorcery,jshum/sorcery,creepycheese/sorcery,kristianmandrup/sorcery,wendy0402/sorcery,Sology/sorcery,alexanderedge/sorcery,kristianmandrup/sorcery,jshum/sorcery,Borzik/sorcery,jerefrer/sorcery,Sorcery/sorcery,Sology/sorcery,Sorcery/sorcery,alexanderedge/sorcery,trustyknave/sorcery,athix/sorcery,wendy0402/sorcery,wasabia/bnbtripSorcery,creepycheese/sorcery,ikhakoo/sorcery,NoamB/sorcery,webgago/sorcery,jerefrer/sorcery,ikhakoo/sorcery,athix/sorcery,Sorcery/sorcery,rubenmoya/sorcery,webgago/sorcery