Intermittent test failure: Library Search User Libraries verify only self and admin can see private user library items

```
AssertionError: 0 == 1
      at RestAPI.User.createUser.RestAPI.User.createUser.RestAPI.Group.createGroup.RestAPI.User.createUser.membership (/Users/nicolaas/Desktop/SakaiOAE/ui/newOAE/Hilary/node_modules/oae-content/tests/test-library-search.js:226:52)
      at module.exports.searchAll (/Users/nicolaas/Desktop/SakaiOAE/ui/newOAE/Hilary/node_modules/oae-search/lib/test/util.js:43:28)
      at Request._callback (/Users/nicolaas/Desktop/SakaiOAE/ui/newOAE/Hilary/node_modules/oae-rest/lib/util.js:202:16)
      at Request.init.self.callback (/Users/nicolaas/Desktop/SakaiOAE/ui/newOAE/Hilary/node_modules/request/index.js:148:22)
      at Request.EventEmitter.emit (events.js:91:17)
      at Request.onResponse (/Users/nicolaas/Desktop/SakaiOAE/ui/newOAE/Hilary/node_modules/request/index.js:891:14)
      at Request.EventEmitter.emit (events.js:115:20)
      at IncomingMessage.Request.onResponse.buffer (/Users/nicolaas/Desktop/SakaiOAE/ui/newOAE/Hilary/node_modules/request/index.js:842:12)
      at IncomingMessage.EventEmitter.emit (events.js:115:20)
      at IncomingMessage._emitEnd (http.js:366:10)
```