Validation added to ensure email message not to be empty.
Migration ran
Merge with the Github server and my laptop

Merge branch 'working' of https://github.com/mariochavez/community into working
CSS and HTML to display an error message in the contact form when the email message is empty
Now some notices are shown in the home page
Documentation about the PUBLISHERS variable and some syntax and grammar corrections were added
A test about contact email was modified to ensure the email message not be empty
Merge branch 'working'
create_crowdblog_users.crowdblog.rb is not need it anymore