Latest download of Scopus files don't work #117

They have added a column called Author(s) ID in the second position in the file which breaks the scopus parse.
Easiest solution is to update docs to reflect this new change. (Alternately, up date code).

Discussed on cytoscape-helpdesk here: https://groups.google.com/forum/?hl=en_US/#!topic/cytoscape-helpdesk/251njWKpaUo