enable appveyor (#70)

* enable appveyor

* remove outdated test/REQUIRE

* allow failures on 0.7 and 1.0

appveyor.yml

@@ -0,0 +1,36 @@
+environment:
+  matrix:
+  - julia_version: 0.6
+  - julia_version: 0.7
+  - julia_version: 1.0
+
+platform:
+  - x86 # 32-bit
+  - x64 # 64-bit
+
+# See https://github.com/JuliaOpt/Cbc.jl/issues/56.
+matrix:
+  allow_failures:
+  - julia_version: 0.7
+  - julia_version: 1.0
+
+branches:
+  only:
+    - master
+
+notifications:
+  - provider: Email
+    on_build_success: false
+    on_build_failure: false
+    on_build_status_changed: false
+
+install:
+  - 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%"
+  - C:\julia\bin\julia -e "%JL_BUILD_SCRIPT%"
+
+test_script:
+  - echo "%JL_TEST_SCRIPT%"
+  - C:\julia\bin\julia -e "%JL_TEST_SCRIPT%"