Merge \"remove \"referenceonly\" flag from the offline-docs build. Add new...

Merge \"remove \"referenceonly\" flag from the offline-docs build. Add new offline-docs-referenceonly make rule. And update online-sdk and offline-sdk to use the new site templates.\" into nyc-dev
am: 83f71845

Change-Id: Id932ce48bb4274096b0c3f367ea0f9d0c7cabef5