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

plugins/meta/bandwidth/bandwidth_suite_test.go

@@ -36,7 +36,7 @@ import (
 
 func TestTBF(t *testing.T) {
 	RegisterFailHandler(Fail)
-	RunSpecs(t, "bandwidth suite")
+	RunSpecs(t, "plugins/meta/bandwidth")
 }
 
 var echoServerBinaryPath string