Add daily DJA 2/1/87 to 10/31/87

As CSV, col1: datestring, col2: index.
Added processed MAT dataset 'nymex-crude.mat'

Time ordered data of 620 crude oil related articles from Reuters in
5180-ProperNoun feature description and associated attributes to market
such as closest closing time and time between publishing to closing
time. See data\nymex-crude\nymex-crude.nfo for full description.