Add asset check script

script/check_assets.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+if grep -q 'go/src/github.com/sosedoff/pgweb' ./pkg/data/bindata.go
+then
+  echo "=========================================================="
+  echo "ERROR: Bindata contains development references to assets!"
+  echo "Fix with 'make assets' and commit the change."
+  echo "=========================================================="
+  exit 1
+fi