Allow Alliance Fellows to Give Up Voting Rights (#12730)

* allow fellows to abdicate voting rights

* rename founders to founding fellows, give equal power

* Drop FoundingFellow role and veto call (#12762)

* drop FoundingFellow role

* drop veto call

* Storage migration to remove founder role (#12766)

* storage migration to remove founder role

* skip migration if no members

* truncate the final fellows set if overflows

* change log - action order

* MemberAbdicated -> FellowAbdicated

Co-authored-by: Muharem Ismailov <ismailov.m.h@gmail.com>

substrate/frame/alliance/README.md

@@ -1,7 +1,7 @@
 # Alliance Pallet
 
 The Alliance Pallet provides a collective that curates a list of accounts and URLs, deemed by
-the voting members to be unscrupulous actors. The alliance
+the voting members to be unscrupulous actors. The Alliance
 
 - provides a set of ethics against bad behavior, and
 - provides recognition and influence for those teams that contribute something back to the
@@ -19,19 +19,17 @@ to update the Alliance's rule and make announcements.
 ### Terminology
 
 - Rule: The IPFS CID (hash) of the Alliance rules for the community to read and the Alliance
-  members to enforce. Similar to a Code of Conduct.
+  members to enforce. Similar to a Charter or Code of Conduct.
 - Announcement: An IPFS CID of some content that the Alliance want to announce.
 - Member: An account that is already in the group of the Alliance, including three types:
-  Founder, Fellow, or Ally. A member can also be kicked by the `MembershipManager` origin or
-  retire by itself.
-- Founder: An account who is initiated by Root with normal voting rights for basic motions and
-  special veto rights for rule change and Ally elevation motions.
-- Fellow: An account who is elevated from Ally by Founders and other Fellows.
-- Ally: An account who would like to join the alliance. To become a voting member, Fellow or
-  Founder, it will need approval from the `MembershipManager` origin. Any account can join as an
-  Ally either by placing a deposit or by nomination from a voting member.
-- Unscrupulous List: A list of bad websites and addresses, items can be added or removed by
-  Founders and Fellows.
+  Fellow, or Ally. A member can also be kicked by the `MembershipManager` origin
+  or retire by itself.
+- Fellow: An account who is elevated from Ally by other Fellows.
+- Ally: An account who would like to join the Alliance. To become a voting member (Fellow), it
+  will need approval from the `MembershipManager` origin. Any account can join as an Ally either
+  by placing a deposit or by nomination from a voting member.
+- Unscrupulous List: A list of bad websites and addresses; items can be added or removed by
+  voting members.
 
 ## Interface
 
@@ -43,10 +41,11 @@ to update the Alliance's rule and make announcements.
 
 #### For Members (All)
 
-- `give_retirement_notice` - Give a retirement notice and start a retirement period required to pass in order to retire.
+- `give_retirement_notice` - Give a retirement notice and start a retirement period required to
+  pass in order to retire.
 - `retire` - Retire from the Alliance and release the caller's deposit.
 
-#### For Members (Founders/Fellows)
+#### For Voting Members
 
 - `propose` - Propose a motion.
 - `vote` - Vote on a motion.
@@ -59,12 +58,9 @@ to update the Alliance's rule and make announcements.
 - `add_unscrupulous_items` - Add some items, either accounts or websites, to the list of
   unscrupulous items.
 - `remove_unscrupulous_items` - Remove some items from the list of unscrupulous items.
-
-#### For Members (Only Founders)
-
-- `veto` - Veto on a motion about `set_rule` and `elevate_ally`.
+- `abdicate_fellow_status` - Abdicate one's voting rights, demoting themself to Ally.
 
 #### Root Calls
 
-- `init_members` - Initialize the Alliance, onboard founders, fellows, and allies.
+- `init_members` - Initialize the Alliance, onboard fellows and allies.
 - `disband` - Disband the Alliance, remove all active members and unreserve deposits.