Skip Unix hidden files that begin with a period.
Use FileSystemRepresentation when possible on OS X:
This function returns a c-string that IS safe to pass to low-level file functions, like open.
Better file handling on OS X.
OS X: add a few autorelease pools.
Fix an over-release bug.
OS X:
Only return the number of actual elements in the array.
Merge pull request #10 from MaddTheSane/backToGabu

OS X fixes and optimizations