Adding go vet from hack-a-thon (#5328)

* Adding go vet to the api package

* Adding go vet to app package

* Adding go vet to manualtesting package

* Adding go vet to the model package

* Adding go vet to the store dir

* Adding go vet to utils package

* Adding missing dirs with go files

* Fixing up makefile

* Fixing up makefile

* Removing root dir

model/utils_test.go

@@ -34,7 +34,7 @@ func TestAppError(t *testing.T) {
 		t.Fatal()
 	}
 
-	err.Error()
+	t.Log(err.Error())
 }
 
 func TestAppErrorJunk(t *testing.T) {