Added windows CI

Author: octavonce

.appveyor.yml

@@ -0,0 +1,62 @@
+os: Visual Studio 2015
+
+environment:
+  matrix:
+
+  # Stable 64-bit MSVC
+    - channel: stable
+      target: x86_64-pc-windows-msvc
+  # Stable 32-bit MSVC
+    - channel: stable
+      target: i686-pc-windows-msvc
+  # Nightly 64-bit MSVC
+    - channel: nightly
+      target: x86_64-pc-windows-msvc
+      #cargoflags: --features "unstable"
+  # Nightly 32-bit MSVC
+    - channel: nightly
+      target: i686-pc-windows-msvc
+      #cargoflags: --features "unstable"
+
+# ### GNU Toolchains ###
+
+#   # Stable 64-bit GNU
+#     - channel: stable
+#       target: x86_64-pc-windows-gnu
+#   # Stable 32-bit GNU
+#     - channel: stable
+#       target: i686-pc-windows-gnu
+#   # Beta 64-bit GNU
+#     - channel: beta
+#       target: x86_64-pc-windows-gnu
+#   # Beta 32-bit GNU
+#     - channel: beta
+#       target: i686-pc-windows-gnu
+#   # Nightly 64-bit GNU
+#     - channel: nightly
+#       target: x86_64-pc-windows-gnu
+#       #cargoflags: --features "unstable"
+#   # Nightly 32-bit GNU
+#     - channel: nightly
+#       target: i686-pc-windows-gnu
+#       #cargoflags: --features "unstable"
+
+matrix:
+  allow_failures:
+    - channel: nightly
+
+install:
+  - appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
+  - rustup-init -yv --default-toolchain %channel% --default-host %target%
+  - set PATH=%PATH%;%USERPROFILE%\.cargo\bin
+  - rustc -vV
+  - cargo -vV
+
+build: false
+
+test_script:
+  - git submodule update --init --recursive
+  - cargo test --verbose --all %cargoflags%
+  - cargo test --verbose --all --no-default-features %cargoflags%
+  - cargo test --release --verbose --all %cargoflags%
+  - cargo test --release --verbose --all --no-default-features %cargoflags%

README.md

@@ -1,6 +1,6 @@
 # Mimalloc Rust
 
-[![Build Status](https://travis-ci.org/purpleprotocol/mimalloc_rust.svg?branch=master)](https://travis-ci.org/purpleprotocol/mimalloc_rust) [![Latest Version]][crates.io] [![Documentation]][docs.rs]
+[![Build Status](https://travis-ci.org/purpleprotocol/mimalloc_rust.svg?branch=master)](https://travis-ci.org/purpleprotocol/mimalloc_rust) [![AppVeyor](https://ci.appveyor.com/api/projects/status/sv2csbpe6p31y0t5?svg=true)](https://ci.appveyor.com/project/OctavianOncescu/mimalloc_rust) [![Latest Version]][crates.io] [![Documentation]][docs.rs]
 
 A drop-in global allocator wrapper around the [mimalloc](https://github.com/microsoft/mimalloc) allocator.
 Mimalloc is a general purpose, performance oriented allocator built by Microsoft.