Also delete existing frameshift attributes by default.

 - not there: use BasicMapper.pm
 - there, but does not "require" successfully: death

to get the macaque xrefs to work

Do NOT use species name for another database if it has none but the database connections match. Just create a new one. You may get a warning now though but this is how it should be

uptodate docs on what is parsed in the xref parsing stage. So its easy to work out where xref come from and why hopefully