v0.1.8

ADD stop_gradient to ModNumpy
ADD lines and tcoords to write_vtk_poly
MOD use .xdmf2 by default

v0.1.7

ADD examples/velocity_from_tracer

v0.1.6

ADD examples/heat inferring conductivity from temperature
ADD tests/test_io.py to test RAW+XMF I/O

FIX Forced retracing in Problem.linearize() from updates of tracers['epoch'] with TF backend

v0.1.3

First release.