Add version 1.2 with Grove LED Bar
Typo
Add LED Bar examples
Add firmware version method
Rename version 1.2 to 1.2.0
Add version 1.2.1 with Grove 4 Digit Display
Merge pull request #52 from mcauser/led-bar

Add version 1.2.0 with Grove LED Bar and 1.2.1 with Grove 4 Digit Display

Looks really good Mike.  Thanks for all the contributions!