added scrutinizer for code quality measurement and code coverage and added badges to readme

added scrutinizer for code quality measurement and code coverage and added badges to readme

added a license

added a screenshot to the readme

added humbug mutation testing framework

fixed namespaces of some tests

use symfony/console to ease input and output

added test for the server class

added some tests and refactored code

made fishes eating food more explicit

refactored fish class

added twitter bootstrap and vue.js for frontend

wrapped food in it's own class

changed theme to fish and food

use external vector library instead of own implementation