Removing files ".travis.yml" (for Travis build server integration) and "package.json" (for "local" installation of NPM modules like Karma) not relevant for the Mavenized version of "ng-directive-testing". Additionally updated ".gitignore" to no longer ignore "node_modules" since we wont be "locally" installing (instead we will use a globally installed Karma) any NPM modules anyways (and I like to still out all non-relevant still from sample code)
Improvements to Karma configuration file and the Maven POM.