FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/assertion-error/History.md

@@ -0,0 +1,24 @@
+1.1.0 / 2018-01-02
+==================
+
+  * Add type definitions ([#11](https://github.com/chaijs/assertion-error/pull/11))
+
+1.0.1 / 2015-03-04
+==================
+
+  * Merge pull request #2 from simonzack/master
+  * fixes `.stack` on firefox
+
+1.0.0 / 2013-06-08
+==================
+
+  * readme: change travis and component urls
+  * refactor: [*] prepare for move to chaijs gh org
+
+0.1.0 / 2013-04-07
+==================
+
+  * test: use vanilla test runner/assert
+  * pgk: remove unused deps
+  * lib: implement
+  * "Initial commit"