update cljs to 2069, cljsbuild to 1.0.0, piggiebak to 0.1.2, ring to 1.2.1, clojurescript.tes to 0.2.1
update cljs to r2069, cljsbuild to 1.0.0 and clojurescript.test to 0.2.1
correct protocol extension
merge from tutorial-20