sync-engine-shared - Rename HttpUtil to Session
sync-engine-shared - Add session constructor, remove statics
sync-engine-shared - Generalize executeGet/executePost to handle custom ResponseHandlers
sync-engine-shared - Add convenience methods for directly handling HttpResponse
sync-engine-shared - Use SessionManager to link one session per accountId
sync-engine-shared - SF
sync-engine-shared - Update tests
sync-engine-shared - Returned session not set
sync-engine-shared - SF
sync-engine-shared - Apply
sync-engine-shared - refactor / SF / simplify