- use traits for nodes to reduce duplicate code
- fix directory seperators in file node hashes
- use node objects to locate file nodes in result (to use correct hashes)
remove php 5.3 from travis config / add php 5.4.4 (debian wheezy)
remove php 5.4.4 (it is not existing at travis)
Merge pull request #13 from pl-github/dev

Fix windows path problem