Optimize some PNGs and save originals, in some cases, to their own directory.
Add svg and png images for social sharing bar
Add lead photo option to frontmatter, create an include for it, and add to layouts.
Change instructors pages to use new lead photo in frontmatter instead of old custom instructor photo frontmatter.
Add padding to lead image caption if necessary to line up with rest of content.
Add social sharing bar in page layout, update include file to give propper url, update styles for icons, add png for rss-feed.