Previously run-docs.sh uploaded everything but tagged releases to
the root of the developer/project document dir. If changes were uploaded
to master then stable/foo the latest docs would get overwritten by the
stable/foo docs. This change will put master docs in developer/project
and stable foo docs in developer/project/foo fixing this issue.
Change-Id: Ia6d33c5b1654fd6b937154a425a3ea6cdc1d7f27