Add bootstrap css and main.scss. Create resize directive.
Refactor pixi directive. Auto resize pixi renderer on window resize.
Configure the simulation based on a $scope.config object.
Break out app, pixi service, and PersonGraphic into their own files.
Convert PersonGraphic into a TrianglePerson that is a proper class.
Separate client_scripts and server_scripts tasks in gulpfile. Concat client-side scripts.
Minification-safe DI syntax
Use gulp-ng-annotate for seamless minification-safe DI