another dateparser error

Tommy Pettersson observed today that the dateparser.sh test was failing on "4 score, 7 years ago". Nothing wrong with the date parser itself. Apparantly, his computer doesn't like dates from 87 years back. Mine doesn't like them from 105 years back. But parsing score of years, as well as expressions like "tea time", "bed time" and "proper bed time" is completely silly and pointless, so I submitted some patches to remove this functionality. Functionality I put in on a whim. Geez. I think half of my patches to darcs are corrections to the other half of my patches.