Updated Fixture for the Blog Model

Signed-off-by: Justin Yost <justin.yost@yostivanich.com>
Adds Tests for the Blog Model

Signed-off-by: Justin Yost <justin.yost@yostivanich.com>
Adds a Blog method for toggleIsPublished method

Signed-off-by: Justin Yost <justin.yost@yostivanich.com>