add donica image and update mike's image
aaron's photo was recropped to fit better
fixed double CTA on homepage, moved sponsors.md to the right place
updated program text
add MENU to nav bar, ugh, it looks weird
updated images/links at bottom of about page
Merge pull request #5 from stlartworks/edits-1

Edits 1 - BugHerd updates.
Merge pull request #6 from stlartworks/development

Development - merge bugherd updates into master