Return 201 for creation of resource
Merge pull request #48 from EasonLiao/return_node

Return 201 for creation of resource
Add single server testcases.

- Verify that creating directories/files return 201.
- Test that you can recursively delete directories.
- Trying to create a child on a file should fail.
- Trying to put data to a directory should fail.
- Fix punctuations.