beginnings...
Initial creation of abstraction layer
non working work in progress :(
We now have a working abstraction layer
Move more stuff to abstraction layer
Temperature to abstraction
Further abstraction revision. Remove all units from data object
various refinements to display, especially of 'null' responses
Don't keep creating new drivers if the service hasn't changed
More choices of zoom. Check driver maxDays
configurable pressure units and driver
2 decimal places for inches of pressure
nearly working with yahoo
more error checking
add openweathermap
Sort out icon mappings. Switch to SVG for icons. Shift temperature on wide layouts
Don't shift the temperature on vertical layouts
remove debug stuff
Update help
tweak icon mapping