of columns, instead of generating binary columns. Avoid deprecation warning
in loadtables.

Bf/import all column

See merge request !35

calculation

with --import_all and --variable/--category (instead of having the union of
--column, --category, and --variable). Move unknonw vars file export to
separate function.

Make pared down UKB configuration, ukb.cfg

See merge request !36

Rf/recode metadata

See merge request !34

Rf/fmrib config

See merge request !33

Bf/redundant redundancy

Closes #10

See merge request !32

and (more importantly) avoid evaluating column pairs more than once

are explicitly passed in. Also now testing all column pairs, even for columns
that have already been flagged as redundant. May revert this though. New
util.dedup function.

Enh/index visits

Closes #8 and #11

See merge request !31