remove remaining old permissions code and update api docs for roles and permissions

mifosng-db/patches/patch-0018-add-maker-checker-flag-to-permissions.sql

@@ -0,0 +1,13 @@
+
+ALTER TABLE m_permission
+ DROP COLUMN `default_name` , 
+ DROP COLUMN `default_description` , 
+ ADD COLUMN `is_maker_checker` TINYINT(1) NULL DEFAULT AFTER `action_name` ;
+
+update m_permission
+set is_maker_checker = false;
+
+update m_permission
+set is_maker_checker = true
+where grouping not in ('special', 'report')
+and action_name != 'READ';