Bump version to 0.7
Update README.md
Update utils docs
Update gobot package docs
Fix unnecessary goroutine creation
Merge pull request #150 from hybridgroup/gh-148

Fix unnecessary goroutine creation
Update CHANGELOG.md
Bump version to 0.7.1
Update README.md
Merge branch 'master' into dev

Conflicts:
	gobot.go
	platforms/opencv/camera_driver.go
	robot.go
	version.go
Fix merge errors