-e git+https://bitbucket.org/fenics-project/fiat.git@2017.1.0#egg=fiat
-e git+https://bitbucket.org/fenics-project/dijitso.git@2017.1.0#egg=dijitso
-e git+https://bitbucket.org/fenics-project/ufl.git@2017.1.0#egg=ufl
