Speed up jstring_ via magical unboxing specific to GHC 7.8+
Speed up jstring_ via magical unboxing specific to GHC 7.8+

aelve/json-x,timmytofu/aeson,jkarni/aeson,roelvandijk/aeson,sol/aeson,SeanRBurton/aeson,neobrain/aeson,23Skidoo/aeson,roelvandijk/aeson,dmjio/aeson,sol/aeson,bwo/aeson,neobrain/aeson,abbradar/aeson,sol/aeson