Show missing bibId error message on check screen

@ifinnane asked for an error message on the check item(s) page that tells you if there's missing stuff.  Really basic checking for 'bibId' or files.  See screenshot.

(also upgraded to AmberDB 1.1.40)


![screen shot 2013-12-05 at 15 26 32](https://f.cloud.github.com/assets/790199/1680020/9c7929fa-5d65-11e3-83c4-cdca53ba5e3e.png)