Add appveyor and codecov support

Author: RLumSK

appveyor.yml

@@ -0,0 +1,60 @@
+# DO NOT CHANGE the "init" and "install" sections below
+
+# Download script file from GitHub
+init:
+  ps: |
+  $ErrorActionPreference = "Stop"
+  Invoke-WebRequest http://raw.github.com/krlmlr/r-appveyor/master/scripts/appveyor-tool.ps1 -OutFile "..\appveyor-tool.ps1"
+  Import-Module '..\appveyor-tool.ps1'
+
+  install:
+    - ps: Bootstrap
+
+  # Adapt as necessary starting from here
+  environment:
+    global:
+    WARNINGS_ARE_ERRORS: 1
+
+  matrix:
+    - R_VERSION: devel
+  GCC_PATH: mingw_32
+
+  - R_VERSION: devel
+  R_ARCH: x64
+  GCC_PATH: mingw_64
+
+  - R_VERSION: release
+  R_ARCH: x64
+
+  - R_VERSION: stable
+
+
+  build_script:
+    - travis-tool.sh install_deps
+    - travis-tool.sh install_r devtools
+
+  test_script:
+    - travis-tool.sh run_tests
+
+  on_failure:
+    - 7z a failure.zip *.Rcheck\*
+    - appveyor PushArtifact failure.zip
+
+  artifacts:
+    - path: '*.Rcheck\**\*.log'
+  name: Logs
+
+  - path: '*.Rcheck\**\*.out'
+  name: Logs
+
+  - path: '*.Rcheck\**\*.fail'
+  name: Logs
+
+  - path: '*.Rcheck\**\*.Rout'
+  name: Logs
+
+  - path: '\*_*.tar.gz'
+  name: Bits
+
+  - path: '\*_*.zip'
+  name: Bits