build: some small improvements; bump to go1.10

- bump to go 1.10
- Add a linker tag with the build version
- Remove fastbuild, go builds are cached now
- Use better ginkgo suite names

pkg/ns/ns_suite_test.go

@@ -30,5 +30,5 @@ func TestNs(t *testing.T) {
 	runtime.LockOSThread()
 
 	RegisterFailHandler(Fail)
-	RunSpecs(t, "pkg/ns Suite")
+	RunSpecs(t, "pkg/ns")
 }