title: CMIS PermissionDeniedException
body: <p>I'm trying to get service(SAP mobile document) via CMIS. </p>
  
  <p>In service web client i can create folder and add file.</p>
  
  <p>Via CMIS I can auth and get repo's list, but that's all. 
  For other methods I get <code>cmislib.exceptions.PermissionDeniedException: Error 403</code></p>
  
  <p>I used this doca <a href="http://chemistry.apache.org/python/docs/" rel="nofollow noreferrer">http://chemistry.apache.org/python/docs/</a></p>
  
  <pre><code>from cmislib import *
  
  client = CmisClient('https://service/mcm/b/atom', 'user', 'pwd')
  print client.getRepositories()
  
  #REPO
  #repo = client.defaultRepository
  repo = client.getRepository('573f7fc4-2c76-49a2-b63c-d39e370edfde')
  print repo.name
  
  #FOLDER
  rFolder = repo.rootFolder
  print rFolder.id
  
  #denied
  #rFolder.getChildren()
  #acl = rFolder.getACL()
  #print rFolder.getName()
  #newFolder = rFolder.createFolder('testfolder')
  </code></pre>
  
  <p>denied returns <p>
  <code>cmislib.exceptions.PermissionDeniedException: Error 403 at https://url/mcm/b/atom/573f7fc4-2c76-49a2-b63c-d39e370edfde/id?id=906f3ae3-a4c9-3210-7292-c840e0cff769&amp;filter=&amp;includeAllowableActions=false&amp;includeACL=false&amp;includePolicyIds=false&amp;includeRelationships=&amp;renditionFilter=
  </code></p>
  
  <p>*the same error for default repo
  <p><code>#repo = client.defaultRepository</code></p>