Update appveyor.yml (#75)

Author: simonbyrne

appveyor.yml

@@ -5,8 +5,8 @@ environment:
   - julia_version: latest
 
 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)
@@ -26,12 +26,12 @@ 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%"