extending XLS parsing script to deal with all generated XLS files
index data tables on manuscript id, abstract lcation of data tables
added wrappers for indexing receieved, manuscript and subjects
simplified author map, added getter for abstract
support for indexing author properties by articleid and authorid
abstracted calls to author attributes
support for all author col names
removed commented out code
created a dict to map all of the names of column headings

removed calls to get author address lines, telephone and fax details, we don't
use these in the creation of the XML
Merge pull request #52 from IanMulvany/xls-parsing-2

Xls parsing 2