Clean up some serial tests
Fix version number in read me
serial ports for linux
Merge pull request #44 from peterhellberg/0.12.0-wip

Added support for using a Seven Segment Display (SSD)
Merge pull request #42 from nishantmodak/linux-tty

serial ports for linux
Search up to COM256 on Windows
Merge branch 'master' into ethernet-shield

Conflicts:
	lib/dino/tx_rx/usb_serial.rb
Forgot to stage conflict fix...
Merge branch 'ethernet-shield' into 0.12.0-wip
Merge remote-tracking branch 'upstream/0.12.0-wip' into 0.12.0-wip