Fixing bugs based on new participant.other_name field
Making participant.other_name NULLable and NULL by default
Fixing bug in participant release

When the UID is list empty the parent class throws a notice.  This operation
will now catch that notice and allow it to pass if a start or end date has
been selected.
Bumping to next major version coinciding with CLSA wave 2
Merge remote branch 'origin/release' into develop