Fixed TodayFragment unit system

fixes #28
fixes #38
Description text with small caps, fixes #37
Fixed parsed location string if there is no city included in response

fixes #27
Set database units and location to shared preferences

fixes #39
Fixed small bug that cropped the thermometer icon
Added hint to the location dialog from shared preferences
Layout adjustments for various DPI screens, fixes #40
Merge pull request #41 from Predator7/bug-fixes

Bug fixes