Added some xml documentation to GCM Registration ID's.  Close #193
Added some xml documentation to GCM Registration ID's.  Close #193

volkd/PushSharp,fanpan26/PushSharp,bobqian1130/PushSharp,yuejunwu/PushSharp,ingljo/PushSharp,zoser0506/PushSharp,sskodje/PushSharp,SuPair/PushSharp,mao1350848579/PushSharp,profporridge/PushSharp,arleyandrada/PushSharp,zoser0506/PushSharp,richardvaldivieso/PushSharp,JeffCertain/PushSharp,tianhang/PushSharp,sskodje/PushSharp,FragCoder/PushSharp,sskodje/PushSharp,rolltechrick/PushSharp,18098924759/PushSharp,kouweizhong/PushSharp,kouweizhong/PushSharp,JeffCertain/PushSharp,ingljo/PushSharp,ZanoMano/PushSharp,has-taiar/PushSharp.Web,bobqian1130/PushSharp,yuejunwu/PushSharp,agran/PushSharp,rucila/PushSharp,SuPair/PushSharp,tianhang/PushSharp,FragCoder/PushSharp,ingljo/PushSharp,18098924759/PushSharp,tianhang/PushSharp,cafeburger/PushSharp,kouweizhong/PushSharp,rucila/PushSharp,agran/PushSharp,volkd/PushSharp,sumalla/PushSharp,mao1350848579/PushSharp,ZanoMano/PushSharp,richardvaldivieso/PushSharp,fhchina/PushSharp,fanpan26/PushSharp,codesharpdev/PushSharp,fanpan26/PushSharp,cnbin/PushSharp,mao1350848579/PushSharp,wanglj7525/PushSharp,bobqian1130/PushSharp,sumalla/PushSharp,bberak/PushSharp,has-taiar/PushSharp.Web,profporridge/PushSharp,chaoscope/PushSharp,cafeburger/PushSharp,codesharpdev/PushSharp,cnbin/PushSharp,agran/PushSharp,profporridge/PushSharp,ZanoMano/PushSharp,yuejunwu/PushSharp,richardvaldivieso/PushSharp,JeffCertain/PushSharp,arleyandrada/PushSharp,codesharpdev/PushSharp,SuPair/PushSharp,sumalla/PushSharp,zoser0506/PushSharp,rolltechrick/PushSharp,cnbin/PushSharp,rucila/PushSharp,bberak/PushSharp,rolltechrick/PushSharp,18098924759/PushSharp,fhchina/PushSharp,cafeburger/PushSharp,wanglj7525/PushSharp,volkd/PushSharp,fhchina/PushSharp,chaoscope/PushSharp,FragCoder/PushSharp,chaoscope/PushSharp,wanglj7525/PushSharp