Fix assignment of phylesystem-1 access on GitHub

Assuming I've specified to proper .pem file, this should allow us to
push changes properly from the local (phylesystem-api) repo to the
remote on GitHub.
Merge branch 'master' into fix-phylesystem-1-access
Merge pull request #7 from OpenTreeOfLife/fix-phylesystem-1-access

Fix assignment of phylesystem-1 access on GitHub