* Now brands, stores, products and packages can be hidden, so that only relevant
  prices are shown when searching.  The user can both toggle visibility of such
  items as well as list items currently hidden.

* Most database queries are now automatically generated, so that chances of
  stupid mistakes decrease.  Chances of big mistakes increase.

* In search results a counter now show how many items are not shown because
  their price is not good enough, thus making it easier for the user to be sure
  that the prices shown are actually good.

* Now the user can delete the recently created brands, stores, products,
  packages and, most importantly, prices.

* A few more consistency checks were added.