update people

- a bunch of people are now alumni
   - brad
   - alaa
   - farah
   - mohamed
   - mackenzie

also new people:
 - Dilyar Deniz - Masters with Jon Lau
 - Luke Smolders - Masters with Taylor Schmitz
 - Arshya Pooladi-Darvish - Masters
 - Victor Lau - PhD with Shawn Whitehead

- update statuses and add new people