Update OS X packaging instructions
Update OS X packaging instructions

- rename methods
- fix style and grammar
- use touchtracer demo app

aron-bordin/kivy,Cheaterman/kivy,KeyWeeUsr/kivy,rnixx/kivy,inclement/kivy,jkankiewicz/kivy,KeyWeeUsr/kivy,janssen/kivy,tony/kivy,CuriousLearner/kivy,andnovar/kivy,vitorio/kivy,rnixx/kivy,kivy/kivy,akshayaurora/kivy,bionoid/kivy,arlowhite/kivy,Cheaterman/kivy,aron-bordin/kivy,Cheaterman/kivy,matham/kivy,autosportlabs/kivy,rafalo1333/kivy,matham/kivy,kivy/kivy,aron-bordin/kivy,darkopevec/kivy,CuriousLearner/kivy,manthansharma/kivy,rafalo1333/kivy,andnovar/kivy,LogicalDash/kivy,rafalo1333/kivy,LogicalDash/kivy,el-ethan/kivy,darkopevec/kivy,matham/kivy,tony/kivy,jkankiewicz/kivy,aron-bordin/kivy,cbenhagen/kivy,akshayaurora/kivy,CuriousLearner/kivy,darkopevec/kivy,jegger/kivy,LogicalDash/kivy,bionoid/kivy,autosportlabs/kivy,LogicalDash/kivy,arlowhite/kivy,el-ethan/kivy,kivy/kivy,kived/kivy,matham/kivy,jegger/kivy,andnovar/kivy,manthansharma/kivy,KeyWeeUsr/kivy,akshayaurora/kivy,kived/kivy,cbenhagen/kivy,vitorio/kivy,el-ethan/kivy,jegger/kivy,autosportlabs/kivy,arlowhite/kivy,vitorio/kivy,jkankiewicz/kivy,darkopevec/kivy,Cheaterman/kivy,tony/kivy,janssen/kivy,jkankiewicz/kivy,kived/kivy,rnixx/kivy,janssen/kivy,bionoid/kivy,jegger/kivy,janssen/kivy,cbenhagen/kivy,inclement/kivy,inclement/kivy,bionoid/kivy,manthansharma/kivy,manthansharma/kivy,KeyWeeUsr/kivy