fix compiler to get the code to work on xcode7 (beta 6)
fix compiler to get the code to work on xcode7 (beta 6)

pitatensai/DGRunkeeperSwitch,bebslab/DGRunkeeperSwitch,bestwpw/DGRunkeeperSwitch,foxsofter/DGRunkeeperSwitch,Anders123fr/DGRunkeeperSwitch,hejunbinlan/DGRunkeeperSwitch,tranthanhvu/DGRunkeeperSwitch,hejunbinlan/DGRunkeeperSwitch,jinjian1991/DGRunkeeperSwitch,bebslab/DGRunkeeperSwitch,tranthanhvu/DGRunkeeperSwitch,ichu501/DGRunkeeperSwitch,zht415/DGRunkeeperSwitch,ichu501/DGRunkeeperSwitch,loganisitt/DGRunkeeperSwitch,alvinvarghese/DGRunkeeperSwitch,jinjian1991/DGRunkeeperSwitch,sai43/DGRunkeeperSwitch,alvinvarghese/DGRunkeeperSwitch,foxsofter/DGRunkeeperSwitch,zht415/DGRunkeeperSwitch,darlantc/DGRunkeeperSwitch,darlantc/DGRunkeeperSwitch,loganisitt/DGRunkeeperSwitch,csjlengxiang/DGRunkeeperSwitch,confile/DGRunkeeperSwitch,confile/DGRunkeeperSwitch,gontovnik/DGRunkeeperSwitch,Anders123fr/DGRunkeeperSwitch,sai43/DGRunkeeperSwitch,csjlengxiang/DGRunkeeperSwitch,gontovnik/DGRunkeeperSwitch,AbelSu131/DGRunkeeperSwitch,bestwpw/DGRunkeeperSwitch,AbelSu131/DGRunkeeperSwitch,pitatensai/DGRunkeeperSwitch