Add verify script.

static/verify.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+curl \
+  --silent \
+  --data compilation_level=ADVANCED_OPTIMIZATIONS \
+  --data output_format=json \
+  --data output_info=errors \
+  --data output_info=warnings \
+  --data language=ECMASCRIPT5 \
+  --data warning_level=verbose \
+  --data externs_url=https://www.cosmopolite.org/externs/cosmopolite.js \
+  --data-urlencode "js_code@babystats.js" \
+  http://closure-compiler.appspot.com/compile
+echo
+
+gjslint --strict babystats.js