Revert "Revert "add rel=author links to Google+ to pod and release pages in order to provide Author information to Google""

This reverts commit 347471a69fd43614d9f947735a4ca69f81522516.
Hide the google plus under the Author pictures

this was added under the author picture on the author and module pages
and was later reverted; this unreverts it, leaves the code but just
hides the image instead
Merge pull request #1050 from ioncache/master

Adds a hidden google plus image below the author picture