Cherry-pick "Merge branch 'Herwig3Update-1.0-20181204' into '1.0'" into master
FindHerwig3.cmake Update, 1.0 branch (2018.12.04.)
See merge request !397 (merged)
(cherry picked from commit 74e0f67c)
- b62bbfb6 Made the FindHerwig3.cmake module a bit more robust.