Yahoo weather provider fixed

Hello benjymous.

are you still working on the community edition? I didn't saw any updates from your side lately. Nevertheless, yahoo has shut down the free of charge placefinder API. I fixed the code to use the non commercial yahoo tables API. Here is my commit comment:

Changed code to use the yahoo tables API
Lookup is limited to 2000 queries per day, but should be enough if each metawatch user gets an own internet IP
But may be better to add an other free weather provider for the long term

Will you update the community edition on the Play Store or did you stop working on Metawatch?

Bye

Matthias