When publishing a review, an empty review can be published and it will 

show as a blank review.
The publish() function of review has been updated to check for empty 

text in a review's Header, Comment and Footer. When a review with empty 

Header, Comment and Footer is being published, the function throws a 

PublishError. A review with only Ship It and no text is considered 

to be valid and will not raise an error. Updated #982 Testing sending 

e-mails and filtering out users not on a local site to use a non-empty 

Review as we now check for empty reviews.

Ran runtests.py, failed #788 Testing GitHub.authorize. Tested on 

browser to ensure the fix works on Web API.