Merge branch 'eclipseWarnings' into 'development'

src/main/java/nl/tudelft/ewi/queue/DevSecurityConfig.java

...ava/nl/tudelft/ewi/queue/controller/CourseController.java

...va/nl/tudelft/ewi/queue/dialect/AuthenticatedDialect.java

src/main/java/nl/tudelft/ewi/queue/helper/EmailHelper.java

src/main/java/nl/tudelft/ewi/queue/model/Course.java

...ain/java/nl/tudelft/ewi/queue/model/FirstYearStudent.java

src/main/java/nl/tudelft/ewi/queue/model/Lab.java

src/main/java/nl/tudelft/ewi/queue/model/User.java

...main/java/nl/tudelft/ewi/queue/service/CourseService.java

src/main/java/nl/tudelft/ewi/queue/service/GroupService.java

src/main/java/nl/tudelft/ewi/queue/service/LabService.java

...nl/tudelft/ewi/queue/controller/CourseControllerTest.java

...va/nl/tudelft/ewi/queue/controller/LabControllerTest.java

...elft/ewi/queue/controller/NotificationControllerTest.java

.../ewi/queue/dialect/FilterExpressionObjectFactoryTest.java

...est/java/nl/tudelft/ewi/queue/service/LabServiceTest.java

src/test/java/nl/tudelft/ewi/queue/task/RequestTaskTest.java