#1985464 by douggreen: state_flow /workflow page should use format_username
#1988338 by Elijah Lynn: Added Always show drafts, previous revisions, history containers on Workflow tab/page (UX).
#1988356 by Elijah Lynn: Added Improve consistency by renaming revision and id to 'Revision ID'.
#1989310 by Elijah Lynn: Added Workflow page/tab - Rename Drafts to Working Drafts and Other Revisions to Archived Drafts - Less Confusing.
#1989348 by Elijah Lynn: Added author column on drafts and other revisions tables.
* Fix notice undefined #value2
* Example module for testing and demonstration added
* All the issue related to transfer_slider element fixed
* Transfer slider form element issue are fixed and it's back again
* Adding sample code for transfer slider element to README
* Correcting readme contributes