changed name of temperatureButton
Fixed radio button xml android:onClick and F->C functions
Print current checked radio button id on startup for TemperatureActivity
Implemented checked for current radio button in TemperatureActivity
Implemented checked current radio button for DistanceActivity
Implemented checked current radio button for WeightActivity
Refactored unit conversions into Numeric class
Set default values
Updated interface layout. Fixed bug with weightField on WeightActivity