Updated submodule fixtures to latest, and had it ignore randomly
generated files, and OSX specific files.
Fixed hard coded value for the number of datastreams.
Clean up and new test.
Handle small files (less than 4 bytes)
Merge pull request #1 from nigelgbanks/dev

Merged changed made by Nigel and Aleksey. These changes add tests for Fedora 4, perform deletes at the start and end for clean up along with each fedora test group performing a delete in the end as a part of the test.