Add g+ link with rel='author' to authored by text
Replaced tabs with 2 spaces
Override g+ author link with post googleplus_user with option to ignore
Changes taking into account  comments by @yous
Update readme
Revert condition check to empty string check
Merge pull request #47 from alwynlombaard/add-googleplus-rel-author-to-author-link

Add g+ link with rel='author' to authored by text