clowder

Merge pull request #1359 in CATS/clowder from bugfix/CATS-999-page-loading-is-very-slow-for-datasets-with-lots-of-files to develop

* commit 'de7a8cded27c73f7add8ca30812e77a935776d65':
  Fixed slow load times in dataset page by removing queries for comments  and tags on files within a dataset. As a result dataset page does not  show comments on files within the dataset anymore.