Test proper omitempty handling for Raw.
Test proper omitempty handling for Raw.

Yottaa/mgo.v2,gabrielrussell/mgo,gabrielrussell/mgo,jjz/mgo,deafgoat/mgo,mcuadros/mgo,Danzeer/mgo,Danzeer/mgo,henrylee2cn/mgo,gabrielrussell/mgo,jjz/mgo,jackspirou/mgo,hexadecy/mgo,go-mgo/travis-test,Yottaa/mgo.v2,raymondjacobson/mgo,DroiTaipei/mgo,henrylee2cn/mgo,go-mgo/travis-test,jackspirou/mgo,jjz/mgo,henrylee2cn/mgo,raymondjacobson/mgo,DroiTaipei/mgo,mcuadros/mgo,mcuadros/mgo,henrylee2cn/mgo,raymondjacobson/mgo,raymondjacobson/mgo,lucasjo/mgo,hexadecy/mgo,lucasjo/mgo,DroiTaipei/mgo,Danzeer/mgo,go-mgo/travis-test,gabrielrussell/mgo,deafgoat/mgo,jackspirou/mgo,tmc/mgo,tmc/mgo,jjz/mgo,deafgoat/mgo,deafgoat/mgo,Yottaa/mgo.v2,tmc/mgo,hexadecy/mgo,lucasjo/mgo,DroiTaipei/mgo,tmc/mgo,hexadecy/mgo,Yottaa/mgo.v2,go-mgo/travis-test,lucasjo/mgo,mcuadros/mgo,Danzeer/mgo,jackspirou/mgo