Incorporated harvesting functionality; automatically call appropriate parser after file has been downloaded. Changes to SwissProtParser to allow it to be run from the command-line or invoked from another module

Now looks at OX line of SwissProt record (if present) and checks to see that it refers to a species that we're interested in. If not the xref is not stored.

Added EMBL to list of sources (columns other than name are null, so it is not used as a source to upload from)

Refactored.

SwissProt records with multiple accessions now create appropriate records in the xref and synonym tables

altered Translate so only strips trailing stop codons if they are actually the last full codon

Expanded species table.

Use DBI mysql_insert_id instead of calling DB function.