Sitecore ECM v2 Role Controller

ecm.role.controller

Manager roots = Campaign Manager in version 1

Each Manager roots contains default settings etc. Includes page redirecting, 
default roles and global opt-in and opt-out roles

In the email, if you have links from
sitecore/unsubscribe.aspx
sitecore/unsubscribefromall.aspx

The email generate pipeline will inject ec_camp and ec_as querystring into these 
links

unsubscribe will remove person from recipients list's opt-in and add into recipients 
list's opt-out.

unsubscribefromall will not remove person from campaign's opt-in, however will add 
into campaign's opt-out

token key are in lower case.