added .gitignore
added .gitignore

boehlke/OpenSlides,FinnStutzenstein/OpenSlides,normanjaeckel/OpenSlides,jwinzer/OpenSlides,ostcar/OpenSlides,OpenSlides/OpenSlides,boehlke/OpenSlides,FinnStutzenstein/OpenSlides,emanuelschuetze/OpenSlides,emanuelschuetze/OpenSlides,rolandgeider/OpenSlides,rolandgeider/OpenSlides,boehlke/OpenSlides,jwinzer/OpenSlides,FinnStutzenstein/OpenSlides,ostcar/OpenSlides,tsiegleauq/OpenSlides,CatoTH/OpenSlides,CatoTH/OpenSlides,tsiegleauq/OpenSlides,OpenSlides/OpenSlides,tsiegleauq/OpenSlides,normanjaeckel/OpenSlides,boehlke/OpenSlides,FinnStutzenstein/OpenSlides,rolandgeider/OpenSlides,ostcar/OpenSlides,jwinzer/OpenSlides,emanuelschuetze/OpenSlides,emanuelschuetze/OpenSlides,normanjaeckel/OpenSlides,CatoTH/OpenSlides,normanjaeckel/OpenSlides,jwinzer/OpenSlides,CatoTH/OpenSlides,jwinzer/OpenSlides