Update appveyor script

Author: nicoleepp

appveyor.yml

@@ -1,18 +1,18 @@
 environment:
   matrix:
   - julia_version: 0.6
-  - julia_version: 1.0
-  - julia_version: latest
+  - julia_version: 1
+  - julia_version: nightly
 
 platform:
-  - x86
-  - x64
+  - x86 # 32-bit
+  - x64 # 64-bit
 
-## uncomment the following lines to allow failures on nightly julia
-## (tests will run but not make your overall status red)
-#matrix:
-#  allow_failures:
-#  - julia_version: latest
+# # Uncomment the following lines to allow failures on nightly julia
+# # (tests will run but not make your overall status red)
+# matrix:
+#   allow_failures:
+#   - julia_version: nightly
 
 branches:
   only:
@@ -26,12 +26,18 @@ notifications:
     on_build_status_changed: false
 
 install:
-  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/JuliaCI/Appveyor.jl/master/bin/install.ps1'))
+  - ps: iex ((new-object net.webclient).DownloadString("https://raw.githubusercontent.com/JuliaCI/Appveyor.jl/version-1/bin/install.ps1"))
 
 build_script:
   - echo "%JL_BUILD_SCRIPT%"
-  - julia -e "%JL_BUILD_SCRIPT%"
+  - C:\julia\bin\julia -e "%JL_BUILD_SCRIPT%"
 
 test_script:
   - echo "%JL_TEST_SCRIPT%"
-  - julia -e "%JL_TEST_SCRIPT%"
+  - C:\julia\bin\julia -e "%JL_TEST_SCRIPT%"
+
+# # Uncomment to support code coverage upload. Should only be enabled for packages
+# # which would have coverage gaps without running on Windows
+# on_success:
+#   - echo "%JL_CODECOV_SCRIPT%"
+#   - C:\julia\bin\julia -e "%JL_CODECOV_SCRIPT%"