Matching: Authorship in autonyms should be handled more gracefully

[rogerhyam]

The current matching algorithm stops parsing the name when it comes to a word that is not a taxon-name word. When and autonym is presented that has the authorship after the species part but is then followed by the autonym part then no match is found.

The algorithm should continue to the end of the string to find any additional taxon name parts and, if it does, ignore the author string.

This will cause some issues when authors have names that look like taxon names but they are likely to be very infrequent.