Refactored DirectoryInfo and FileInfo method names to include *Sync (to allow adding future async methods) in the fs-filesysteminfo.js library.

FileSystemInfo:
1.  Fixed logic in the Refresh method to properly set the exists property value.

DirectoryInfo:
1.  Updated the CreateSubdirectorySync method in cases where multiple paths would be added (I have also added tests for this method).  Previously it was not recursively creating directories.
2.  DeleteSync([recursive]) method.

FileInfo:
1.  Added DeleteSync() method.

Other:
1.  Updated the README.md to reflect changes noted above.
2.  Added additional tests to test/fs-filesysteminfo_test.js.
3.  Updated the .gitignore file to ignore everything under the /tmp directory.
4.  Bumped the patch version to 0.0.3 in package.json