Revert to original haddock travis install. Works for 7.6.3
Revert to original haddock travis install. Works for 7.6.3

kmate/HaRe,mpickering/HaRe,SAdams601/HaRe,mpickering/HaRe,SAdams601/HaRe,RefactoringTools/HaRe,RefactoringTools/HaRe,mpickering/HaRe,kmate/HaRe,SAdams601/HaRe,RefactoringTools/HaRe,kmate/HaRe