added support for HTTP Range requests, adding lws-range to the default stack. Fixes #81.

doc/api.md

@@ -0,0 +1,51 @@
+<a name="module_local-web-server"></a>
+
+## local-web-server
+**Emits**: <code>module:local-web-server#event:verbose</code>  
+**Example**  
+```js
+const LocalWebServer = require('local-web-server')
+const localWebServer = new LocalWebServer()
+const server = localWebServer.listen({
+  port: 8050,
+  https: true,
+  directory: 'src',
+  spa: 'index.html',
+  websocket: 'src/websocket-server.js'
+})
+// secure, SPA server with listening websocket now ready on port 8050
+```
+
+* [local-web-server](#module_local-web-server)
+    * [LocalWebServer](#exp_module_local-web-server--LocalWebServer) ⏏
+        * [.listen([options])](#module_local-web-server--LocalWebServer+listen) ⇒ <code>Server</code>
+
+<a name="exp_module_local-web-server--LocalWebServer"></a>
+
+### LocalWebServer ⏏
+**Kind**: Exported class  
+<a name="module_local-web-server--LocalWebServer+listen"></a>
+
+#### localWebServer.listen([options]) ⇒ <code>Server</code>
+Returns a listening HTTP/HTTPS server.
+
+**Kind**: instance method of [<code>LocalWebServer</code>](#exp_module_local-web-server--LocalWebServer)  
+**Params**
+
+- [options] <code>object</code> - Server options
+    - [.port] <code>number</code> - Port
+    - [.hostname] <code>string</code> - The hostname (or IP address) to listen on. Defaults to 0.0.0.0.
+    - [.maxConnections] <code>number</code> - The maximum number of concurrent connections supported by the server.
+    - [.keepAliveTimeout] <code>number</code> - The period (in milliseconds) of inactivity a connection will remain open before being destroyed. Set to `0` to keep connections open indefinitely.
+    - [.configFile] <code>string</code> - Config file path, defaults to 'lws.config.js'.
+    - [.https] <code>boolean</code> - Enable HTTPS using a built-in key and cert registered to the domain 127.0.0.1.
+    - [.key] <code>string</code> - SSL key file path. Supply along with --cert to launch a https server.
+    - [.cert] <code>string</code> - SSL cert file path. Supply along with --key to launch a https server.
+    - [.pfx] <code>string</code> - Path to an PFX or PKCS12 encoded private key and certificate chain. An alternative to providing --key and --cert.
+    - [.ciphers] <code>string</code> - Optional cipher suite specification, replacing the default.
+    - [.secureProtocol] <code>string</code> - Optional SSL method to use, default is "SSLv23_method".
+    - [.stack] <code>Array.&lt;string&gt;</code> | <code>Array.&lt;Middlewares&gt;</code> - Array of feature classes, or filenames of modules exporting a feature class.
+    - [.server] <code>string</code> | <code>ServerFactory</code> - Custom server factory, e.g. lws-http2.
+    - [.websocket] <code>string</code> | <code>Websocket</code> - Path to a websocket module
+    - [.moduleDir] <code>Array.&lt;string&gt;</code> - One or more directories to search for modules.
+