disable host check for devServer and fix host parsing (#168)

* disable host check or devServer

* test for pathname

* update message

* update comment

* update config docs

packages/cli/config/webpack.config.develop.js

@@ -41,6 +41,7 @@ module.exports = ({ config, context, graph }) => {
     devServer: {
       port,
       host,
+      disableHostCheck: true,
       historyApiFallback: true,
       hot: false,
       inline: true

packages/cli/lifecycles/config.js

@@ -81,8 +81,8 @@ module.exports = readAndMergeConfig = async() => {
 
           if (devServer.host) {
             // eslint-disable-next-line max-depth
-            if (url.parse(devServer.host).hostname === null) {
-              reject(`Error: greenwood.config.js devServer host type must be a valid url, including http://.  Passed value was: ${devServer.host}`);
+            if (url.parse(devServer.host).pathname === null) {
+              reject(`Error: greenwood.config.js devServer host type must be a valid pathname.  Passed value was: ${devServer.host}`);
             } else {
               customConfig.devServer.host = devServer.host;
               // console.log(`custom host provided => ${customConfig.devServer.host}`);

test/cli/test-bed.js

@@ -4,7 +4,7 @@
  *   workspace: path.join(process.cwd(), 'src'),
  *   devServer: {
        port: 1984,
-       host: 'http://localhost'
+       host: 'localhost'
      },
      publicPath: '/'
  * } 

www/pages/docs/configuration.md

@@ -18,7 +18,7 @@ module.exports = {
 ### Dev Server
 Configuration for Greenwood's development server are available using the `devServer` option.  Two options are available:
 - `port`: Pick a different port when starting the dev server
-- `host`: If you need to use a custom domain when developing locally (generally used along with editing an `/etc/hosts` file)
+- `host`: If you need to use a custom domain (using [pathname](https://nodejs.org/api/url.html#url_url_pathname)) when developing locally and generally used along with editing an `/etc/hosts` file.
 
 #### Example
 ```render js