Some upgrade queries are improperly scoped

[asmecher]

The upgrade code contains, within the "for each journal" loop:

$userGroupDao->update('UPDATE review_assignments SET stage_id = ?', array(WORKFLOW_STAGE_ID_EXTERNAL_REVIEW));

This needs to execute once per install, not once per journal.

Later, it contains:

$userGroupDao->update('UPDATE authors SET user_group_id = ?', array((int) $group->getId()));

This should be per-journal, but executes on the whole site dataset for every journal, resulting in authors referring to groups in other journals.

[asmecher]

PR: pkp/ojs#1364
@bozana, would you mind having a look?

[bozana]

@asmecher, yes, that looks good :-) Thus, when tests pass it can be merged... :-)

[asmecher]

Thanks! Merged into ojs-stable-3_0_2 and cherry-picked to master.