[Booj-20] - Updated the blog post date functionality to hide posts
until the published date has been hit.
[Marketing-458] - Added syntax highlighting to the booj blog.
[Booj-16] - Swapped the PHP mailer for SwiftMailer.
Merge pull request #9 from djhype/master

Fixes for [Booj-16], [Booj-20], [Booj-28], and [Marketing-458]