Made sure there is a guid in cases the field is present but empty
Removed useless less require
Filter the amount of entries to return in store_entries
Don't send empty jobs to the queue
Handle entries with no guid and no link, too
Just ignore when there is no title/link/guid
Ignore dates before 1900

This test will become useless in 2050 but by this time we'll all be running
python 6.
Added back the category link in individual items