Add FORMAT_WORD_DOCX constant for the "docx" format and continue support for FORMAT_WORD2003 constant as a "wordml" format .
requested to merge topic/jasplin/add-format_word_docx-constant-for-the-do-1511540463981/bitbucket-pr-3 into branch/default
Created originally on Bitbucket by jasplin (John Asplin)
Add FORMAT_WORD_DOCX constant for the "docx" format and continue support for FORMAT_WORD2003 constant as a "wordml" format .