Added support for Sensor Data Streaming in shpero driver
Exposed collision detection configuration.
Adding EventStream method to spark adaptor
Update travis build script

Update .travis.yml
Increase i2c test coverage
Fix error with caputre and window interfaces
Fix stack trace on close
Fix null reference on failure to connect

Refactor sphero adaptor
Account for already exported pins and unexportable pins
Correctly pass os.PathError from fs mock Openfile function)
Refactor pwm operations
Update generator
Add driver, adaptor and project subcommands to generator
Add optional package name parameter
update robeaux to 5d46e912eef7f4f15dec463e1415b4d4072f10c7
update changelog
Add speedpin parameter
Merge branch 'dev' of github.com:hybridgroup/gobot
Bump version to 0.8
Merge remote-tracking branch 'krylovsk/master' into sphero_enhancements

Conflicts:
	platforms/sphero/sphero_driver.go