Home page retrieves all tasks at once

1. login on https://nightly.nuxeo.com/nuxeo/ui/#!/home
2. open the google chrome inspector
3. select the Network tab
4. reload the page
5. observe the tasks are all retrieved at once through the REST API task endpoint (see singleCall.png):

   https://nightly.nuxeo.com/nuxeo/api/v1/task?userId=Administrator
   

6. this has a huge impact on performance when a user has several hundred tasks

Expected behavior: this should be paginated to avoid retrieving all tasks at once and a big page loading delay