Update CoreClr, CoreFx, Standard, WCF to preview2-25527-04, preview2-25527-02, preview1-25527-01, preview2-25527-01, respectively (#2899)
Update CoreClr, CoreFx, Standard, WCF to preview2-25527-04, preview2-25527-02, preview1-25527-01, preview2-25527-01, respectively (#2899)


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