GPII-127: Add the 'more text' panel. Saves setting to store, etc. No enactor yet.
GPII-127: Update Infusion to latest master
GPII-127: Start on more-text enactor and 'details' element exploration test page
Merge branch 'master' into GPII-127

Conflicts:
	demos/discoveryTool/index.html
	src/discoveryTool/js/DiscoveryTool.js
	src/discoveryTool/js/SelfVoicingEnactor.js
	src/lib/infusion/README.md
	src/shared/lib/infusion/MyInfusion.js
GPII-127: First pass at showing/hiding alt text. Needs re-working.
GPII-127: Refactor enactor to reduce hard-coding of more-text markup
GPII-127: Modify altText algorigthm to handle aria-labels on divs with role="image"
GPII-127: Use details element for moreText; start to improve styling of more text
Merge branch 'master' into GPII-127

Conflicts:
	src/discoveryTool/css/DiscoveryTool.css
GPII-127: Add high- and low-contrast styling for more-text icon
GPII-127: Update <details> test file to demonstrate Safari problem
GPII-127: Fix to styling to ensure disclosure widget responds in Safari
GPII-127: convert functionality to configurable invokers; minor renaming
GPII-127: Trigger addition of moreText markup on creation
Merge branch 'master' into GPII-127
GPII-127: Add new MoreText icon font; fix some aria img roles in the demo content
GPII-127: Commit changes for more text icon
Merge branch 'master' into GPII-127

Conflicts:
	demos/discoveryTool/demo.js
	src/discoveryTool/js/DiscoveryTool.js
GPII-127: Clean-up based on pull request comments.
GPII-127: Clean up use of markup template, improve naming