Add Google/Bing webmaster site auth

static/BingSiteAuth.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0"?>
+<users>
+	<user>791DE42D06C3D02751CA1A04D93BA2EE</user>
+</users>

static/googleba4ae1011414c9ce.html

@@ -0,0 +1 @@
+google-site-verification: googleba4ae1011414c9ce.html