Detection

*Now has better network detection
-Now checks for network connection every time the button is pushed or
the view reloads
-If there is a weatherData file found from a previous use it displays
that when offline.
-If there is not a weatherData file from a previous use then it displays
a textview stating there was no weather data found
*This system keeps it from crashing if it can't find the file but allows
it to load the file if there is one.