Update .travis.yml (#6)
Update .travis.yml (#6)

Changes:
	Make it more obvious when failure occurs because of `go fmt`
	Run tests with race detector
google/safebrowsing,rebrandly/google-safe-browsing,dsnet/safebrowsing,google/safebrowsing,google/safebrowsing,google/safebrowsing,dsnet/safebrowsing,dsnet/safebrowsing,dsnet/safebrowsing,rebrandly/google-safe-browsing,rebrandly/google-safe-browsing,rebrandly/google-safe-browsing