Added unit tests, test pillars, Kitchen and Travis
diff --git a/tests/pillar/rdiff.sls b/tests/pillar/rdiff.sls
new file mode 100644
index 0000000..977b942
--- /dev/null
+++ b/tests/pillar/rdiff.sls
@@ -0,0 +1,8 @@
+backupninja:
+  server:
+    enabled: true
+    rdiff: true
+    key:
+      client1.domain.com:
+        enabled: true
+        key: ssh-key