Expand CI testing

Author: timholy

.travis.yml

@@ -3,8 +3,10 @@ language: julia
 os:
   - linux
   - osx
+  - windows
 julia:
   - 1.0
+  - 1
   - nightly
 notifications:
   email: false
@@ -16,7 +18,7 @@ jobs:
   fast_finish: true
   include:
     - stage: Documentation
-      julia: 1.0
+      julia: 1
       script: julia --project=docs -e '
           using Pkg;
           Pkg.develop(PackageSpec(path=pwd()));