message: Remove unused imports and reformat for readability
diff: -import {Body, Put, Post, Delete, Param, JsonController, UseBefore, UploadedFile} from 'routing-controllers';
  +import {Body, Post, JsonController, UseBefore, UploadedFile} from 'routing-controllers';
  import fs = require('fs');
  import passportJwtMiddleware from '../security/passportJwtMiddleware';
  -import {Lecture} from '../models/Lecture';
  -import {Unit} from '../models/units/Unit';
  -import {IUnit} from '../../../shared/models/units/IUnit';
  import {VideoUnit} from '../models/units/VideoUnit';
  import {UnitController} from './UnitController';
  @@ -22,7 +19,12 @@ export class UploadUnitController extends UnitController {
  }
  // path for file upload units (for now video only)
  if (file) {
  - return new VideoUnit({_course: data.courseId, filePath: file.path, fileName: file.originalname}).save()
  + return new VideoUnit({
  + _course: data.courseId,
  + filePath: file.path,
  + fileName: file.originalname
  + })
  + .save()
  .then((unit) => this.pushToLecture(data.lectureId, unit));
  }
  }
  