Treat an empty content type as nil content type (issue #40) -- tests
Treat an empty content type as nil content type (issue #40) -- tests

liamseanbrady/rack,Codeman655/rack,joevandyk/rack,sigmavirus24/rack,Comcast/rack,paulrogers/rack,imtayadeway/rack,maclover7/rack,trexnix/rack,imtayadeway/rack,jeremyf/rack,shaneog/rack,keithduncan/rack,zjsxwc/rack,arronmabrey/rack,jhodder/rack,evanphx/rack,deepj/rack,gfvcastro/rack,evanphx/rack,AMekss/rack,maclover7/rack,jeremyf/rack,zjsxwc/rack,arronmabrey/rack,wjordan/rack,tylergannon/rack,getaroom/rack,shaneog/rack,rwz/rack,keithduncan/rack,wjordan/rack,nmk/rack,tricknotes/rack,keithduncan/rack,stepri/rack,supzann3/rack,Comcast/rack,zjsxwc/rack,jeremyf/rack,arronmabrey/rack,davidcelis/rack,wildjcrt/rack,tylergannon/rack,laplaceliu/rack,ngpestelos/rack,travis-repos/rack,krainboltgreene/lack,eins78/rack,keepcosmos/rack,davidcelis/rack,ktheory/rack,Comcast/rack,jackxxu/rack,rkh/rack,gioele/rack,AMekss/rack,keepcosmos/rack,rwz/rack,davidcelis/rack,keepcosmos/rack,liamseanbrady/rack,nmk/rack,wildjcrt/rack,davydovanton/rack,deepj/rack,stepri/rack,rwz/rack,laplaceliu/rack,sigmavirus24/rack,ngpestelos/rack,davydovanton/rack,liamseanbrady/rack,ngpestelos/rack,gioele/rack,stepri/rack,fabianrbz/rack,supzann3/rack,Codeman655/rack,gioele/rack,maclover7/rack,Eric-Guo/rack,eins78/rack,trexnix/rack,eavgerinos/rack,gfvcastro/rack,wildjcrt/rack,akihiro17/rack,ktheory/rack,getaroom/rack,sigmavirus24/rack,fabianrbz/rack,fabianrbz/rack,trexnix/rack,jackxxu/rack,eavgerinos/rack,davydovanton/rack,akihiro17/rack,gfvcastro/rack,AMekss/rack,eins78/rack,imtayadeway/rack,supzann3/rack,deepj/rack,laplaceliu/rack,chneukirchen/rack,rkh/rack,Codeman655/rack,getaroom/rack,Eric-Guo/rack,ganmacs/rack,Eric-Guo/rack,chneukirchen/rack,lgierth/rack,evanphx/rack,nmk/rack,eavgerinos/rack,ganmacs/rack,tylergannon/rack,tricknotes/rack,wjordan/rack,ganmacs/rack,jackxxu/rack,chneukirchen/rack,shaneog/rack,akihiro17/rack