Renamed README.txt to README.md.
Changed to use relative imports.
Changed to use relative imports.
Changed to use relative imports.
Changed to use relative imports.
Added a plain text formatter.

Added
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* New decorator format_as_plain_text formatter that formats names as one name per line with leading and trailing white space removed.
Changed to output as plain text.
Allow numbers in object and quantity names.
Added master file for standard names.