added tests for initial support for super- and sub-scripts
changed the order tests, first basic unicode fractions, then mixed unicode
added two files
added basic support for transliteration for super- and sub- scripts
bad test, changed order of transliteration test
full suport of super- and sub-script build mixed fractions
added a aditional test for 'minus two three-twentieths' which does all
failed a pod test
implemented 'to_mixed' to return mixed fractions in ASCII or Perl style
added conversion utillity _to_unicode
added support for unicode output:
to_unicode_string ( returns unicode 'top heavy' strings)
to_unicode_mixed (returns unicode normal fractions)
Here are the changes!