Use Julia 1.5 for code coverage and for generating documentation.

Author: kernelmethod

.travis.yml

@@ -30,15 +30,15 @@ jobs:
 
     - stage: 
       julia: 1.4
+
+    - stage:
+      julia: 1.5
       after_success:
         # Code coverage
         - julia -e 'using Pkg; Pkg.add("Coverage");'
         - julia -e 'using Coverage; Coveralls.submit(Coveralls.process_folder());'
         - julia -e 'using Coverage; Codecov.submit(Codecov.process_folder());'
 
-    - stage:
-      julia: 1.5
-
     - stage:
       julia: nightly
 
@@ -47,7 +47,7 @@ jobs:
     ########################################################
 
     - stage: "Documentation"
-      julia: 1.4
+      julia: 1.5
       install:
         - sudo apt-get update
         - sudo apt-get install -y python3.7 python3-pip python3-setuptools