-show(data) does not work properly with shipyards and outfitters

[ReimeiSky]

The -show and -showdata commands fail with shipyards and outfitters unless the argument is properly capitalized and given quotation marks.

For example, -show Basic Ships fails, as do -showdata "lovelace basics" and -showdata outfitter Common Outfits. But -showdata shipyard "Tarazed Advanced" works.

[tehhowch]

For these and some other category keywords you have to write the literal matchable string. Changing this is probably ok, now that we have category restriction.