just because

improved add/remove role logic

Issue #1789322 by alexweber: Fixed Allow admins to create subscriptions on behalf of users even if they don't have 'create" permission.

prefixed rules actions with "subs_rules" to make it clearer which functions are rules action callbacks and which are Drupal core actions

Implemented actions for all subscription operations

refactored create subscription block to use new permissions

added extra "create" and "delete" permissions per subscription type

removed general access check in create subscription block

cleanup code

implemented hook_subs_access()

Updated API docs

Refactored subs_access()

Created new permissions.

motivation for this is that its confusing.  if we specify a default status, we should also specify a default role and i'm just not sure we want to go there.  let each subs type define its own status and role.

Issue #1691454, subs roles - assign automatically role for a subs based on status.  Added subs_roles submdule.