Fix vertical space

Signed-off-by: Abhijit Hiremagalur <abhi@pivotallabs.com>
Ignore coverprofiles generated by goveralls

Signed-off-by: Abhijit Hiremagalur <abhi@pivotallabs.com>
Fix data races in component_test after go 1.3 bump

Signed-off-by: Abhijit Hiremagalur <abhi@pivotallabs.com>