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: Iee22aa299a11517f6c0efb73b57d5d256c8148c1