Update .travis.yml.

Author: kernelmethod

.travis.yml

@@ -6,11 +6,13 @@ notifications:
 jobs:
   allow_failures:
     - env: TRAVIS_JULIA_VERSION=nightly
-    - env: TRAVIS_OS_NAME=windows
+    - os: osx
+    - os: windows
   include:
     ###### Tests
     ### Julia 1.3
-    - stage: "Test (Julia 1.3)"
+    - stage: "Unit tests"
+      name: "Unit tests (Julia 1.3) (Linux)"
       julia: 1.3
       os: linux
       script:
@@ -21,32 +23,34 @@ jobs:
         - julia -e 'using Coverage; Coveralls.submit(Coveralls.process_folder());'
         - julia -e 'using Coverage; Codecov.submit(Codecov.process_folder());'
 
-    - stage: # Test (Julia 1.3)
+    - stage: # Unit tests
+      name: "Unit tests (Julia 1.3) (OSX)"
       julia: 1.3
       os: osx
       script:
         -  julia --color=yes -e 'using Pkg; Pkg.activate(); Pkg.instantiate(); Pkg.test()'
 
-    - stage: # Test (Julia 1.3)
+    - stage: # Unit tests
+      name: "Unit tests (Julia 1.3) (Windows)"
       julia: 1.3
       os: windows
       script:
         -  julia --color=yes -e 'using Pkg; Pkg.activate(); Pkg.instantiate(); Pkg.test()'
 
     ### Julia nightly
-    - stage: "Test (Julia nightly)"
+    - stage: # Unit tests
+      name: "Unit tests (Julia nightly) (Linux)"
       julia: nightly
       os: linux
       script:
         -  julia --color=yes -e 'using Pkg; Pkg.activate(); Pkg.instantiate(); Pkg.test()'
 
-    - stage: # Test (Julia nightly)
+    - stage: # Unit tests
+      name: "Unit tests (Julia nightly) (OSX)"
       julia: nightly
       os: osx
       script:
         - julia --color=yes -e 'using Pkg; Pkg.activate(); Pkg.instantiate(); Pkg.test()'
-
-    - stage: # Test (Julia nightly)
       julia: nightly
       os: windows
       script: