imageupload: use full prefix for better URLs
imageupload: use full prefix for better URLs

Former-commit-id: 456482d937dae9ec148655dfcec21eadf964c3a2 [formerly 6c9db5c4db5de3372045eec9cbe4d5ce730b5c86]
Former-commit-id: 40f3a24a85e82e5ce0b7a3d6f4193608a7cad983
torhve/ivar2,torhve/ivar2,torhve/ivar2,haste/ivar2