Fixes to tagcount.

Added proper logging.
Now storing tag info in SQL db, using clever upsert.
Removed the old stateful code.
Replaced the silly JDBC example with one showing upsert on a web spider count.
Ignoring nrepl port file.
Fixes to web.

Changed the query to subtract an interval of 75 minutes,
ordering by count descending, and limiting to just 10 rows.