Small fix to remove core packages from Wyam.All build
Small fix to remove core packages from Wyam.All build

adamclifford/Wyam,adamclifford/Wyam,adamclifford/Wyam,adamclifford/Wyam,Wyamio/Wyam,Wyamio/Wyam,adamclifford/Wyam,Wyamio/Wyam