Bump version to 0.4.0-dev
Bump version to 0.4.0-dev

Signed-off-by: Vincent Demeester <87e1f221a672a14a323e57bb65eaea19d3ed3804@sbr.pm>

dweomer/docker-libcompose,docker/libcompose,vito-c/libcompose,vito-c/libcompose,weitenghuang/libcompose,jainvipin/libcompose,vdemeester/libcompose,Azure22/libcompose,docker/libcompose,jainvipin/libcompose,weitenghuang/libcompose,dweomer/docker-libcompose,Azure22/libcompose,vdemeester/libcompose