get rid of a load of build stuff; simplify, fix vulns, simplify CI

.gitignore

@@ -1,2 +1,3 @@
 /coverage/
 /node_modules/
+/.nyc_output/

.travis.yml

@@ -1,18 +1,8 @@
 language: node_js
 node_js:
-  - "4"
-  - "6"
   - "8"
-dist: trusty
-addons:
-  chrome: stable
-before_install:
-  - export CHROME_BIN=chromium-browser
-  - export DISPLAY=:99.0
-  - sh -e /etc/init.d/xvfb start
-  - if [[ `npm -v` = 2* ]]; then npm i -g npm@3; fi
-  - npm install -g grunt-cli
 script:
-  - grunt travis_ci_build
+  - npm run test
+  - npm run coverage
 after_success:
   - ./node_modules/coveralls/bin/coveralls.js < coverage/lcov.info

README.md

@@ -32,18 +32,6 @@ uses ThemeMatch to provide a complete solution for managing plugins
 CSS choices and dynamically switching themes, loading and unloading CSS for
 the core and all plugins for you.
 
-## NodeJS and browser compatibility
-
-ThemeMatch works with both NodeJS and the browser natively, for NodeJS
-require the package like this:
-
-```javascript
-let themematch = require('themematch');
-```
-
-In the browser, loading an appropriate 'dist' file will add `themematch`
-to window.
-
 ## Worked example
 
 In order to work, ThemeMatch must know about the themes available, this
@@ -238,11 +226,3 @@ File | Description
 themematch.js | Limited ES6 features (works with Node.js v4+ and most browsers)
 themematch_es5.js | ES5 translation (should work with anything)
 themematch_es5.min.js | Minified ES5 translation
-
-## Build
-
-run `npm install` to install the dev/build dependencies, and
-`grunt build` to build.
-
-This will create ES5 `dist/themematch.js` and `dist/themematch.min.js`
-files, and run the unit tests against them.