Code + comment cleanup for the response models

ref #39

src/models/responses/ResponseRunner.ts

@@ -7,13 +7,12 @@ import { RunnerGroup } from '../entities/RunnerGroup';
 import { ResponseParticipant } from './ResponseParticipant';
 
 /**
- * Defines RunnerTeam's response class.
+ * Defines the runner response.
 */
 export class ResponseRunner extends ResponseParticipant {
 
     /**
      * The runner's currently ran distance in meters.
-     * Optional.
      */
     @IsInt()
     distance: number;
@@ -24,6 +23,10 @@ export class ResponseRunner extends ResponseParticipant {
     @IsObject()
     group: RunnerGroup;
 
+    /**
+     * Creates a ResponseRunner object from a runner.
+     * @param runner The user the response shall be build for.
+     */
     public constructor(runner: Runner) {
         super(runner);
         this.distance = runner.scans.filter(scan => { scan.valid === true }).reduce((sum, current) => sum + current.distance, 0);