Syllabus building

Added form for students to enter blog addresses. Made CSS changes
to new google font for headers and strong elements. Changed app.py
to manage serve home page from landing.html template.

	modified:   app.py
	new file:   pages/form.md
	modified:   pages/studentposts.md
	modified:   pages/syllabus.md
	modified:   static/css/style.css
	modified:   templates/base.html
	new file:   templates/landing.html