Merge pull request #133 from zelgerj/master

added accesses nodes
minor fix for wrong folder usage
Merge pull request #134 from wick-ed/master

reviewed diff and tested locally
minor comment refactorings
added missing attribute
minor bugfix to allow missing authorisations
Merge pull request #135 from wick-ed/master

reviewed diff and tested locally with 0.6.0
added logger feature