Added some documentation for timezone transition functions
Added some documentation for timezone transition functions

julen/babel,nandoflorestan/babel,lepistone/babel,mitsuhiko/babel,python-babel/babel,srisankethu/babel,upman/babel,xlevus/babel,gutsy/babel,st4lk/babel,upman/babel,mitsuhiko/babel,lepistone/babel,skybon/babel,julen/babel,felixonmars/babel,srisankethu/babel,yoloseem/babel,python-babel/babel,KIT-XXI/babel,moreati/babel,hanteng/babel,moreati/babel,mgax/babel,nandoflorestan/babel,masklinn/babel,julen/babel,nickretallack/babel,moreati/babel,iamshubh22/babel,jmagnusson/babel,jespino/babel,yoloseem/babel,javacruft/babel,jmagnusson/babel,felixonmars/babel,KIT-XXI/babel,KIT-XXI/babel,skybon/babel,iamshubh22/babel,mgax/babel,iamshubh22/babel,nickretallack/babel,nandoflorestan/babel,nickretallack/babel,hanteng/babel,mitsuhiko/babel,javacruft/babel,masklinn/babel,st4lk/babel,gutsy/babel,javacruft/babel,prmtl/babel,xlevus/babel,st4lk/babel,masklinn/babel,felixonmars/babel,yoloseem/babel,jmagnusson/babel,srisankethu/babel,mbirtwell/babel,hanteng/babel,skybon/babel,prmtl/babel,gutsy/babel,xlevus/babel,mbirtwell/babel,prmtl/babel,jespino/babel,mbirtwell/babel,upman/babel,lepistone/babel