updates some links, fixes #142
Merge pull request #159 from 18F/https

Updates some links
Update CONTRIBUTING.md
adding link to 18f.gsa.gov team names yaml file
Merge pull request #165 from 18F/data-edits-reminder

adding link to 18f.gsa.gov team names yaml file
Updating FOIA team members.
Updating FOIA team to match 18f.gsa.gov team file for everyone on FOIA team.
Merge pull request #164 from 18F/foia_team_update

Updating FOIA team members.
Merge pull request #171 from 18F/gh-pages

Updates from gh-pages to staging