Underline headers on the landing page.

calpoly/frontend/templates/index.html: Add <hr>
elements to each section on the website instead
of using <br>'s.
Update the 2014-2015 project manager.

calpoly/frontend/templates/projects/proposal.html,
Angela is no longer the project manager. Change
the email to Alfredo Sanchez's email for the
2014-2015 year.
Move tutoring under the outreach tab.

This was one of @skyshiro and @ayoeurng's
requests.

calpoly/frontend/templates/base.html: Add <li> for
each href under the dropdown for outreach and move
tutoring from "about" to "outreach".