CircleCI: Test for go vet issues.
CircleCI: Test for go vet issues.

bpowers/gopherjs,jargv/gopherjs,bpowers/gopherjs,Archs/gopherjs,Yanjing123/gopherjs,govlas/gopherjs,gopherjs/gopherjs,albrow/gopherjs,Yanjing123/gopherjs,jargv/gopherjs,Yanjing123/gopherjs,govlas/gopherjs,Archs/gopherjs,jargv/gopherjs,govlas/gopherjs,gopherjs/gopherjs,gopherjs/gopherjs,gopherjs/gopherjs,Archs/gopherjs,albrow/gopherjs,bpowers/gopherjs,albrow/gopherjs,gopherjs/gopherjs