Add network connection statusbar icon
Fix weather provider preference saving

Addresses issue #13
Remove extraneous log statement
Use localStorage to handle preferences in javascript
Chang yahoo mostly cloudy to use the cloud symbol, which is what they
use on their own site.
Merge pull request #15 from snaggen/weather_code_adjustments

Change Yahoo "mostly cloudy" to use the cloud symbol
Merge pull request #14 from snaggen/js_store_prefs

Use `localStorage` to handle preferences in JS app