Added Yahoo Weather API credit and HTML fixes
Such widget

It's finally here. Or at least it's almost here. This is the first bit
of work on the Weather Doge widget. It's relatively functional as-is
but has a number of glaring bugs. Go ahead and give it a spin.
Tap the widget to reload it.

TODO:
  * Support Comic Neue
  * Separate settings(?)
  * Bulletproof text rendering
  * Update animations
  * Classic dogeweather.com adjectives
  * Customizable update interval
  * Proper sky rendering
  * Update widget on settings update
  * Refactor and clean up code to make a little more sense
  * Make the last updated text actually display something useful