uc_product_power_tools 6.x-1.10

Bugfixes:
#598548: Error with defaults on null db fields, changed most fields to be not null
#598782: One of the update functions was returning a non-array value causing update.php to complain.
(This should probably be dealt with in core, update.php should probably do a is_array() sanity check before assuming the returned value is in fact an array)

New Features:
#596100: Added default ubercart provided Product nodes to available list of product classes to tweak settings for.