Add licensing under the MIT licensing (as the PSF license is intended only for software under the jurisdiction of the Python Software Foundation proper). Reference licenses in the Trove Classifiers as well as in the README. Fixes #138

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extra : amend_source : 57d337b42ad1ec4d57cf6cb604171712f4495fb5
Detect and support Windows XP explicitly. Ref #94.
In addition to , fall back to , and then to the current directory, when determining the data root on Windows. Fixes #94.