Update podspec to version 0.2.2
Update podspec to version 0.2.2

mokagio/GaugeKit,DrGo/GaugeKit,lammertw/GaugeKit,bryanmikaelian/GaugeKit,skywinder/GaugeKit,mokagio/GaugeKit,mokagio/GaugeKit,DrGo/GaugeKit,lammertw/GaugeKit,bryanmikaelian/GaugeKit,skywinder/GaugeKit,lammertw/GaugeKit,bryanmikaelian/GaugeKit