more refactoring
stable interim version
fixed some display bugs, added masking
added simple progress bar
some refactoring, handled some 'undefined' cases
Merge branch 'prepare-for-handoff' of https://github.com/johnfelleman/pif-cr-ext into prepare-for-handoff

Conflicts:
	help-me-sam/help_me_sam/field_list.json
	help-me-sam/help_me_sam/mybusa.js
	help-me-sam/help_me_sam/usdsJsHelper.js