Added some data for wa weather stations

Doc folder contain some info on how it was obtained
Now reading from the test list of station urls

We just pick the first one, Argle
Refactor of mainactivity and new fragment for picking weather station

pulled out windgraph fragment from mainactivity.
Added a new fragment for the listing of weather stations. This then launches the windgraphfragment.
Bugs here:
weather station state (shown in brackets) is always null.
the windgraphfragment shows up on top of the weather station list
hitting back from the windgraphfragment exits the app rather than go back to the weather station list.
fix for transparent graph
removed save state code from weather station

This fragment does not have any state to save at the moment.
Added some logging so it is more clear when a graph is populated from a previously saved bundle
Weather stations show state correctly
Merge pull request #1 from feerrenrut/ListAvailableStations

List available stations