Add logging to module published trigger

On alpha, all the problems from Connexions/cnx-upgrade#36 are still there.  The uuid changes when you republish an existing module, the major and minor versions are not set.

I tried inserting the module that I found on `/var/log/postgresql/postgresql-9.3-main.log` on alpha into my local db:

```
INSERT INTO modules                                                                                      
                  (moduleid, portal_type, version, name, created, revised, authors, maintainers, licensors,  abstractid, stateid, licenseid, doctype, submitter, submitlog, language, parent)
                VALUES
                (
                 'm47641',
                 'Module',
                 '1.1',
                 'HTML Publishing Test 2 12-13-2013',
                 '2013-12-14T01:57:20Z',
                 '2013-12-14T01:58:24Z',
                 ARRAY ['ew2'],
                 ARRAY ['ew2'],
                 ARRAY ['ew2'],
                 1,
                 NULL,
                 7,
                 '',
                 'ew2',
                 'Created module',
                 'en',
                 null
                );
```

It has uuid `18da04bd-b3dc-4568-a45f-3b11b00a01aa`, major version `1` and minor version `NULL`.

I tried publishing the same module again:
```
INSERT INTO modules                                                                                                     (moduleid, portal_type, version, name, created, revised, authors, maintainers, licensors,  abstractid, stateid, licenseid, doctype, submitter, submitlog, language, parent)
        VALUES
        (
         'm47641',
         'Module',
         '1.2',
         'HTML Publishing Test 2 12-13-2013',
         '2013-12-14T01:57:20Z',
         '2013-12-14T02:58:24Z',
         ARRAY ['ew2'],
         ARRAY ['ew2'],
         ARRAY ['ew2'],
         1,
         NULL,
         7,
         '',
         'ew2',
         'Created module',
         'en',
         null
        );
```

It has the same uuid `18da04bd-b3dc-4568-a45f-3b11b00a01aa`, major version `2` and minor version `NULL`.

I'm pretty sure the code is working, so what I'm doing in this PR is to just add some logging to see if there's anything unexpected happening.