Bug 17678 - C4::Acquisition - Replace GetIssues with Koha::Issues
Bug 17599 - Move C4::Circulation::GetIssuingRule to Koha::IssuingRules->get_effective_issuing_rule
Bug 17679 - C4::Circulation - Remove unused GetItemIssues
Bug 17680 - C4::Circulation - Replace GetItemIssue with Koha::Issues