Reduce image size: BMadigan1.jpg

Command: convert -resize 50% -quality 85 BMadigan1.jpg BMadigan1.small.jpg
Change image size of Prof. Mayda's image.
Move all archive posts from old site. Formatting is still wrong.
Pointing all images in old posts to /assets/images.
Correct images which already exist in staff pics.
Copy images over from old site. Fix some images in posts.
Remove unused horizontal rule and whitespace.