We should not update the tv hashmeter time unless we're updating the hashrates
Make it possible to enable/disable the status window from switching via the display menu
Update README for modified display
Document BFx2 USB device support
Use the serial number as unique_id for cta display
Frequency only needs 3 digits for cointerra statline
Merge pull request #570 from kanoi/master

allow url based config files
Clean up various curl build issues
Minor correctness fix for unnecessary free
Update NEWS
Bump version to 4.2.2