Karma adapter for ZombieBox application

Usage

``
const zombiebox = require('zombiebox');
const zombieboxConfig = require('zombiebox-karma').buildConfig(zombiebox, {
// Optional adapter options
});

module.exports = (config) => {
config.set(zombieboxConfig.extend({
// Custom config
}));
};
`

#### Adapter options

customConfigs: string[] - custom configs for instantiating ZB application, [] by default

alternativeExtension: boolean - include files with .es6 extension, false by default

transpile: boolean - add babel preprocessor for included files, false by default

transpileOnlyAlternativeExtension: boolean - add babel preprocessor only for included files with .es6 extension, false by default

transpilingPreset: string - es2015` by default