Add versioning to the networking guide as follows:
1) Remove the networking guide from the template that
includes similar continuous-release guides.
2) Add the networking guide below the template to the
index.html, liberty/index.html, kilo/index.html, and
juno/index.html files using specific releases.
3) Move the <div> tags from the template to the index.html
files.
Note: The juno/index.html file references the Kilo version
of the networking guide.
Change-Id: Ib3465beb3969fb1411e43286794f40695a3768ce
8614f66ab7