Merge branch 'preventiveMeasures' into 'master'

package-lock.json

package.json

src/app/app-routing.module.ts

src/app/app.module.ts

src/app/article/article.component.css

src/app/article/article.component.html

src/app/article/article.component.spec.ts

src/app/article/article.component.ts

src/app/data.json

src/app/json-typings.d.ts

...app/preventive-measures/preventive-measures.component.css

...pp/preventive-measures/preventive-measures.component.html

src/app/preventive-measures/preventive-measures.component.ts