Moved the klimato widget files into the klimato directory.
Fixed indenting.
Added CSS classes to be used for several temperature ranges (Celsius).
On data load remove the current background color and determine a new background color by the current temperature. Use the previously added CSS classes for several temperature ranges (Celsius). Fahrenheit could still be added.
Only apply a different background color when the format is Celsius.
There's no need for interpolation, since we're only using variables.
Merge pull request #1 from kevintuhumury/master

Added support for changing the background color based on the retrieved temperature (Celsius).