Remove artificial dependency on XML::Simple

create_release_tasks.pl: explicitly dereference arguments to 'keys'

create_release_tasks.pl: distinguish between submitter and assignee

The only part of the xref-mapping pipeline that depended on the
long-deprecated module XML::Simple was TAIROntologyParser - which did
not actually *use* that module for anything. Get rid of the useless
import, thus making it unnecessary for XML::Simple to be mentioned in
the cpanfile.

Merge e! 95 version bumps into master

Schema patch to update Vertebrates division names in the meta table f…

Fixed typo for new Vertebrate division name in metaContainer test

Schema patch to update Vertebrates division names in the meta table from Ensembl to EnsemblVertebrates for consistency. See declaration for details: https://www.ebi.ac.uk/panda/jira/browse/ENSINT-104.

Useful under the circumstance when the person running the script is not
in fact the RelCo for the next release, as it has already been the case
before. Saves one having to manually reassign all the newly created
tickets to the actual RelCo. Conversely, if it is the same person just
omit the new argument and the RelCo user name will be used to connect to
JIRA.

Note that the function validating user names is only applied to RelCo
ones. This is intentional, JIRA itself will complain if the submitter is
not authorised to create ENSCORESW tickets.

Being able to pass a scalar to e.g. keys was an experimental feature
that was added in Perl 5.14 and since declared failed, thus causing the
script to fail with an "Experimental keys on scalar is now forbidden"
error.

ENSCORESW-2850: optimised for single species run

ENSCORESW-2837: do not import dependent VGNC

ENSCORESW-2853: match Ensembl species names with underscores

Feature/xref config