rest/api: Fix white space
rest/api: Use "PidTagDisplayName" in PUT "/folders/(id)"
rest/api: Clarify 'properties' parameter is a 'comma separated list'
rest/api: Add required fields for 'POST  /folders/' and one more status code
in case of errors
Merge pull request #14 from openchange/kamenim/mapistore-python

Documentation updates while working on Folders module in mock server