seba-365 - implemented dep

Change-Id: Ia6226d50e7615935a0c8876809a687427ff88c22
diff --git a/vendor/github.com/xdg/stringprep/.travis.yml b/vendor/github.com/xdg/stringprep/.travis.yml
new file mode 100644
index 0000000..f391327
--- /dev/null
+++ b/vendor/github.com/xdg/stringprep/.travis.yml
@@ -0,0 +1,11 @@
+language: go
+sudo: false
+go:
+  - "1.7"
+  - "1.8"
+  - "1.9"
+  - "1.10"
+  - master
+matrix:
+  allow_failures:
+    - go: master