Added .gitignore
Added .gitignore

William-Yeh/travis-docker,moul/travis-docker,JosuaKrause/reprozip,wpears/travis-docker,dockware/travis-docker,ViDA-NYU/reprozip,JosuaKrause/reprozip,ViDA-NYU/reprozip,ViDA-NYU/reprozip,ViDA-NYU/reprozip,jopecko/travis-docker,JosuaKrause/reprozip,JosuaKrause/reprozip,ViDA-NYU/reprozip