Massive renumbering!!!

15-bulletin-board/README.md

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+Style #13
+==============================
+
+Constraints:
+
+- Larger problem is decomposed into entities using some form of abstraction
+  (objects, modules or similar)
+
+- The entities are never called on directly for actions
+
+- Existence of an infrastructure for publishing and subscribing to
+  events, aka the bulletin board
+
+- Entities post event subscriptions (aka 'wanted') to the bulletin
+  board and publish events (aka 'offered') to the bulletin board. the
+  bulletin board does all the event management and distribution
+
+Possible names:
+
+- Bulletin board
+- Publish-Subscribe