Merge pull request #25 from JuliaDocsForks/juliadocs/cap-documenter

Cap Documenter.jl to 0.19 on Travis

Author: Evizero

.travis.yml

@@ -27,7 +27,7 @@ jobs:
       os: linux
       script:
         - julia -e 'import Pkg; Pkg.clone(pwd()); Pkg.build("MLDatasets")'
-        - julia -e 'import Pkg; Pkg.add("Documenter")'
+        - julia -e 'import Pkg; ps=Pkg.PackageSpec(name="Documenter", version="0.19"); Pkg.add(ps); Pkg.pin(ps)'
         - julia -e 'import MLDatasets; ENV["DOCUMENTER_DEBUG"] = "true"; include(joinpath("docs","make.jl"))'
 
 ## uncomment the following lines to override the default test script