Merge pull request #766 from mozilla/update-hapi-6.2.0

Update to hapi 6.2.0

package.json

@@ -38,7 +38,7 @@
     "convict": "0.4.2",
     "fxa-auth-mailer": "git://github.com/dannycoates/fxa-auth-mailer.git#452434ae0f",
     "fxa-customs-server": "git://github.com/mozilla/fxa-customs-server.git#d5f96e7308aae0a803ea140dfa3b0234f9389d86",
-    "hapi": "6.0.2",
+    "hapi": "6.2.0",
     "hapi-auth-hawk": "git://github.com/dannycoates/hapi-auth-hawk.git#b2f1d31184",
     "hkdf": "0.0.2",
     "joi": "4.6.1",