Add ability to destroy a user with 0 posts

lib/admin_logger.rb

@@ -0,0 +1,16 @@
+# Responsible for logging the actions of admins and moderators.
+class AdminLogger
+  def initialize(admin)
+    @admin = admin
+    raise Discourse::InvalidParameters.new('admin is nil') unless @admin and @admin.is_a?(User)
+  end
+
+  def log_user_deletion(deleted_user)
+    raise Discourse::InvalidParameters.new('user is nil') unless deleted_user and deleted_user.is_a?(User)
+    AdminLog.create(
+      action: AdminLog.actions[:delete_user],
+      admin_id: @admin.id,
+      details: [:id, :username, :name, :created_at, :trust_level, :last_seen_at, :last_emailed_at].map { |x| "#{x}: #{deleted_user.send(x)}" }.join(', ')
+    )
+  end
+end