Made default options logic compatible with Ruby 1.8.7.

As per github issue fatfreecrm#50

Author: ndbroadbent

lib/fat_free_crm/permissions.rb

@@ -42,7 +42,8 @@ def uses_user_permissions
           #   :order => primary key descending
           #   :limit => none
           #
-          scope :my, lambda { |options = {}|
+          scope :my, lambda { |options|
+            options = {} unless options
             includes(:permissions).
             where("#{quoted_table_name}.user_id     = :user OR " <<
                   "#{quoted_table_name}.assigned_to = :user OR " <<