Disable publishing if no publish type is specified
Disable publishing if no publish type is specified

This is first step for configuring publish, there will need to
be some further refactoring to make the publishing what we need
for orchestrated builds.

wtgodbe/core-setup,steveharter/core-setup,MichaelSimons/core-setup,steveharter/core-setup,wtgodbe/core-setup,crummel/dotnet_core-setup,zamont/core-setup,steveharter/core-setup,rakeshsinghranchi/core-setup,rakeshsinghranchi/core-setup,ericstj/core-setup,MichaelSimons/core-setup,ericstj/core-setup,zamont/core-setup,rakeshsinghranchi/core-setup,ericstj/core-setup,crummel/dotnet_core-setup,chcosta/core-setup,weshaggard/core-setup,weshaggard/core-setup,wtgodbe/core-setup,chcosta/core-setup,crummel/dotnet_core-setup,MichaelSimons/core-setup,weshaggard/core-setup,crummel/dotnet_core-setup,zamont/core-setup,wtgodbe/core-setup,zamont/core-setup,chcosta/core-setup,rakeshsinghranchi/core-setup,MichaelSimons/core-setup,steveharter/core-setup,weshaggard/core-setup,chcosta/core-setup,MichaelSimons/core-setup,crummel/dotnet_core-setup,crummel/dotnet_core-setup,zamont/core-setup,zamont/core-setup,ericstj/core-setup,MichaelSimons/core-setup,steveharter/core-setup,chcosta/core-setup,weshaggard/core-setup,wtgodbe/core-setup,rakeshsinghranchi/core-setup,ericstj/core-setup,steveharter/core-setup,wtgodbe/core-setup,rakeshsinghranchi/core-setup,ericstj/core-setup,weshaggard/core-setup,chcosta/core-setup