Updating banner

The banner is updated per #12.

modified:   _includes/banner.html
renamed:    index.html -> about-us.html
modified:   contact.html
renamed:    blog.html -> index.html
new file:   prospective-student.html
modified:   about-us.html
Merge pull request #14 from mys721tx/master

Updating banner
Update 2014-02-28-tom-smith.markdown
Update 2014-02-28-tom-smith.markdown
Update 2014-02-28-tom-smith.markdown
Merge branch 'master' of github.com:briggslab/briggslab.github.io

Conflicts:
	_includes/banner.html
	about-us.html
	contact.html
	index.html
	prospective-student.html