SEO: title and description updates
Merge branch 'master' of http://github.com/katycain526/centerforopenscience.org into communities-addition

# By Katy Cain
# Via Katy Cain
* 'master' of http://github.com/katycain526/centerforopenscience.org:
  SEO: title and description updates

Conflicts:
	www/index.mako
	www/involved_opportunities.mako