Added metadata to Issue

Created by: joel-rightshift

We needed a field on Issue that could hold arbitrary data. To enable this, we added a metadata field. The change itself it rather simple

app/models/issue.rb

@@ -31,6 +31,12 @@ class Issue < ActiveRecord::Base
   scope :of_group, ->(group) { where(project_id: group.project_ids) }
   scope :of_user_team, ->(team) { where(project_id: team.project_ids, assignee_id: team.member_ids) }
+
+  #  attr_accessible :title, :assignee_id, :position, :description,
+  #                  :milestone_id, :label_list, :state_event, :metadata
+
+  #  acts_as_taggable_on :labels
+
   scope :cared, ->(user) { where(assignee_id: user) }
   scope :open_for, ->(user) { opened.assigned_to(user) }