Make manual build

Review Request #8586 — Created Jan. 1, 2017 and discarded — Latest diff uploaded

Information

Review Board
master

Reviewers

Fix the sys.path set up to point to the current working copy of review
board. Without this, the build of docs.db fails with:

ImportError: Could not import settings 'reviewboard.settings'

Also add the GitHub hosting service referenced in initial_data.json. Without
this, the build fails with:

CRITICAL:root:Resource "<class
'reviewboard.webapi.resources.hosting_service.HostingServiceResource'>"
requires objects in the database

make html now works. Didn't before this.