Update README.md
Merge pull request #3 from Floppy/sensor-methods

Sensor instructions
Merge pull request #4 from Floppy/new-sensor-api

Simplified sensor configuration API
Merge pull request #1 from tehviking/master

Upstream changes
Add rspec
Add configuration module
remove default motor/sensor initialisation
Remove sensor#configure
update README and examples to use create block
Merge pull request #5 from Floppy/rename-ports

Rename ports
Merge pull request #6 from Floppy/configuration-dsl

Create blocks to specify a whole robot
Merge pull request #2 from tehviking/master

Upstream changes
Merge branch 'refs/heads/master' into start-top-block

Conflicts:
	README.md