Merge pull request #320 from atlasapi/people-upcoming

Support UPCOMING and AVAILABLE_LOCATIONS on people
Merge pull request #321 from atlasapi/mbst-6501-all-pa-featured-content-content-group

Maintain a content group for PA featured content that has all items ever featured
Add number of HTTP requests to health page
Merge branch 'queued-requests-health-page' into stage