Removed dead feedburner link, with plans to re-enable later.
finally updated WPVERSION
Reducing memory footprint, switched to DB cache.

Start of memory footprint reduce.
Trying not to hold too many database objects in memory,
next will be all those html strings in htmltools and elsewhere.

Also, switched to database caching instead of default local memory.
New database table created with `manage.py createcachetable
welbornprod_cache`.