modified:   source/edp_chaleur.rst
	modified:   source/examples/edp5_2D_heat_vect.py
	modified:   source/examples/edp6_2D_heat_solve.py
	new file:   source/examples/edp7_waves.py
	new file:   source/examples/plot_edp7_waves.py
Merge branch 'master' of github.com:python-prepa/python-prepa