docs(readme): update badges to svg

Using http://shields.io directly. Easier to keep consistent IMHO. But
it seems a bit shaky, so let’s see how this goes.

Also updated the library size info.

Closes #46

README.md

@@ -1,8 +1,12 @@
-# ApiMock for AngularJS: UI-first development [![Build Status](https://travis-ci.org/seriema/angular-apimock.png?branch=master)](https://travis-ci.org/seriema/angular-apimock) [![Coverage Status](https://coveralls.io/repos/seriema/angular-apimock/badge.svg?branch=master&service=github)](https://coveralls.io/github/seriema/angular-apimock?branch=master) [![devDependency Status](https://david-dm.org/seriema/angular-apimock/dev-status.png)](https://david-dm.org/seriema/angular-apimock#info=devDependencies)
+# ApiMock for AngularJS: UI-first development
+
+[![Build Status](https://img.shields.io/travis/seriema/angular-apimock.svg)](https://travis-ci.org/seriema/angular-apimock)
+[![Coverage Status](https://img.shields.io/coveralls/seriema/angular-apimock.svg)](https://coveralls.io/github/seriema/angular-apimock?branch=master)
+[![devDependency Status](https://img.shields.io/david/dev/seriema/angular-apimock.svg)](https://david-dm.org/seriema/angular-apimock#info=devDependencies)
 
 [![Join the chat at https://gitter.im/seriema/angular-apimock](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/seriema/angular-apimock?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
-ApiMock is a minimal (1.5kb gzipped) library for AngularJS that allows you to mock your RESTful API by routing your API calls to static JSON files.
+ApiMock is a minimal (1.68kb gzipped) library for AngularJS that allows you to mock your RESTful API by routing your API calls to static JSON files.
 
 
 ## Example