Update podspec to version 0.2.3
Update podspec to version 0.2.3

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