update appveyor

Author: joshday

appveyor.yml

@@ -1,9 +1,11 @@
 environment:
   matrix:
- #- JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x86/0.4/julia-0.4-latest-win32.exe"
- #- JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x64/0.4/julia-0.4-latest-win64.exe"
-  - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x86/0.5/julia-0.5-latest-win32.exe"
-  - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x64/0.5/julia-0.5-latest-win64.exe"
+  - julia_version: 0.7
+  - julia_version: latest
+
+platform:
+  - x86
+  - x64
 
 notifications:
   - provider: Email
@@ -12,19 +14,12 @@ notifications:
     on_build_status_changed: false
 
 install:
-  - ps: "[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12"
-# Download most recent Julia Windows binary
-  - ps: (new-object net.webclient).DownloadFile(
-        $env:JULIA_URL,
-        "C:\projects\julia-binary.exe")
-# Run installer silently, output to C:\projects\julia
-  - C:\projects\julia-binary.exe /S /D=C:\projects\julia
+  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/JuliaCI/Appveyor.jl/master/bin/install.ps1'))
 
 build_script:
-# Need to convert from shallow to complete for Pkg.clone to work
-  - IF EXIST .git\shallow (git fetch --unshallow)
-  - C:\projects\julia\bin\julia -e "versioninfo();
-      Pkg.clone(pwd(), \"SweepOperator\"); Pkg.build(\"SweepOperator\")"
+  - echo "%JL_BUILD_SCRIPT%"
+  - julia -e "%JL_BUILD_SCRIPT%"
 
 test_script:
-  - C:\projects\julia\bin\julia -e "Pkg.test(\"SweepOperator\")"
+  - echo "%JL_TEST_SCRIPT%"
+  - julia -e "%JL_TEST_SCRIPT%"