add .npmignore and prepublishOnly

.npmignore

@@ -0,0 +1,6 @@
+src/index.ts
+test
+rollup.config.js
+karma.conf.js
+*.md
+yarn.lock

README.md

@@ -12,8 +12,6 @@ with an express/sinatra style syntax for defining routes and their handlers.
 Pretender will temporarily replace native XMLHttpRequest and Fetch , intercept
 all requests, and direct them to little pretend service you've defined.
 
-**:warning: Pretender only works in the browser!**
-
 ```javascript
 const PHOTOS = {
   "10": {
@@ -40,6 +38,23 @@ const server = new Pretender(function() {
 $.get('/photos/12', {success() => { ... }})
 ```
 
+## Usage examples
+
+You can load Pretender directly in the browser.
+
+```javascript
+<script src="pretender.js"></script>
+```
+
+Or as a module.
+
+```javascript
+import Pretender from 'pretender';
+const server = new Pretender(function() {});
+```
+
+Full example: [use-pretender-as-a-module](https://github.com/givanse/use-pretender-as-a-module)
+
 ## The Server DSL
 The server DSL is inspired by express/sinatra. Pass a function to the Pretender constructor
 that will be invoked with the Pretender instance as its context. Available methods are

karma.conf.js

@@ -22,7 +22,7 @@ module.exports = function(config) {
       'node_modules/es6-promise/dist/es6-promise.auto.js',
       'node_modules/abortcontroller-polyfill/dist/abortcontroller-polyfill-only.js',
       'node_modules/whatwg-fetch/dist/fetch.umd.js',
-      'pretender.js',
+      'dist/pretender.js',
       'test/**/*.js'
     ],
 
@@ -35,7 +35,7 @@ module.exports = function(config) {
     // preprocess matching files before serving them to the browser
     // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
     preprocessors: {
-        'pretender.js': ['coverage']
+        'dist/pretender.js': ['coverage']
     },
 
     coverageReporter: {

package.json

@@ -1,18 +1,19 @@
 {
   "name": "pretender",
   "version": "2.1.0",
-  "main": "./pretender.js",
+  "main": "./dist/pretender.js",
   "module": "./src/pretender.es.js",
   "description": "Pretender is a mock server library for XMLHttpRequest and Fetch, that comes with an express/sinatra style syntax for defining routes and their handlers.",
   "license": "MIT",
   "engines": {
     "node": "6.* || 8.* || 10.* || >= 11.*"
   },
   "scripts": {
-    "build": "rollup --config",
+    "prepublishOnly": "npm run build && npm run tests-only",
     "pretest": "bower install",
+    "build": "rollup --config",
     "test": "npm run lint && npm run jscs && npm run tests-only",
-    "test-ci": "npm run pretest && npm run lint && npm run jscs && npm run tests-only-ci",
+    "test-ci": "npm run pretest && npm run build && npm run lint && npm run jscs && npm run tests-only-ci",
     "tests-only": "karma start --single-run",
     "tests-only-ci": "karma start --single-run --browsers PhantomJS",
     "lint": "jshint test",

rollup.config.js

@@ -16,7 +16,7 @@ module.exports = {
   output: [
     {
       name: 'Pretender',
-      file: 'pretender.js',
+      file: 'dist/pretender.js',
       format: 'iife',
       globals: {
         [selfId]: 'self',