Add a Debug method to allow for debugging individual queries:

o := NewOrm()
u := &User{Name: "Kyle"}
o.Read(user, "Name") // logs nothing

u2 := &User{Email: "kylemcc@gmail.com"}
o.Debug().Read(u2, "Email") // logs debug query

qs := o.Debug().QueryTable("users")
qs.Filter("Profile__Id", 10).One(u) // logs debug query