added config param for individual .ix file

& did some parameter renaming
renamed dhrystone tests
new dhrystone tests
improved .ix location-parsing

we now accept the following tags (first come first used):
  filenames:
    orig-file
    org-file
    file
  line-numbers:
    orig-line
    org-line
    line
  column-numbers:
    orig-column
    org-column
    column