add development dependencies
add base weather object
add basic storage of current measurement
add basic storage of historical measurements
add basic storage of forecast predictions
use temperature values
add temerature related data to measurement
add pressure units to measurement
add distance units to measurement
add float values to measurement
add vector units to measurement
add string values to measurement
update gemspec
add sun rise/set data to measurement
add temperature, float and string values to prediction
add time values to prediction
remove weight + status_code
bump support dependency
add source, format & metadata to weather base object
add time values to weather object base