Windows support (#484)

* try installing on Windows

* Handle windows setup

- no browser detection on windows yet, just placeholder code
- symlink types

* add appveyor file

* add appveyor windows build

* use execa to run server unit tests

* run server unit tests on appveyor

* ignore root install errors

* upgrade rebuild-node-sass

and work on Json unit test that fails on Windows

* print npm version

before installing, commented out caching node modules in the root

* a few small tweaks for windows support

* fix bin-up in launcher project

use bin-up@1.1.0 for windows support, close #491

* cli: build script on Windows, close #492

* cli: build errors are fatal

* use cross-env in extension

Fixes environment variables on Windows in #490

* extension: fix 3 tests on Windows

1 more broken test remaining

* extension: use EOL before comparing text

* example: update test for Windows

* example: replace build.sh with build.js

Close #488

* remove trailing whitespace

* cli: build script again

* server: work on unit tests for windows

* binary: add windows as build platform

* windows: try building binary

started work on building on CI for windows

scripts/binary/index.coffee

@@ -61,7 +61,15 @@ deploy = {
     opts.runTests = false if opts["skip-tests"]
     if not opts.platform and os.platform() == meta.platforms.linux
       # only can build Linux on Linux
-      opts.platform = "linux"
+      opts.platform = meta.platforms.linux
+
+    # windows aliases
+    if opts.platform == "win32" or opts.platform == "win" or opts.platform == "windows"
+      opts.platform = meta.platforms.windows
+
+    if not opts.platform and os.platform() == meta.platforms.windows
+      # only can build Windows binary on Windows platform
+      opts.platform = meta.platforms.windows
 
     # be a little bit user-friendly and allow aliased values
     if opts.platform == "mac"