Remove faulty logger statement

I had a faulty logger statement in the metric worker. The module Sidekiq
does not have the info method, but its logger.

Signed-off-by: Konrad Reiche <konrad.reiche@gmail.com>
Add partial to encapsulate record selection

The record selectors have been separated into its own partial. More and
more view files become redundant, but this seems a necessary process in
this refactoring.

Signed-off-by: Konrad Reiche <konrad.reiche@gmail.com>
Change link checker to eagerly loading records

I am still trying to find out, why the link checker for data.gov.uk
cannot finish and persist the results. I believe this is due to cursor
timeouts. Thus, for now, I am using eagerly record loading again.

Signed-off-by: Konrad Reiche <konrad.reiche@gmail.com>
Start to create accessibility metric view

I have started to create the accessibility metric view because I want to
find out how the Flesch-Kincaid values are distributed.

Signed-off-by: Konrad Reiche <konrad.reiche@gmail.com>