Update single precision patch. Add RMI example (need further tests, fix initial condition). Improve baroclinic operator.

All tests ok, except (as usual) :
 22 - mpi_test_advec_scales (Failed)
 79 - test_advection_nullVelocity (Failed)
 81 - test_advection_randomVelocity (Failed)
 85 - test_gpu_multiresolution_filter (Failed)
 86 - mpi_test_gpu_multiresolution_filter (Failed)

add hemisphere example + dump/restart in examples + add monitor printing velocity/vorticity profiles

Fix penalisation/subsets (partially)
Update doc (sphinx)
Almost all tests ok except:
	 22 - mpi_test_advec_scales (Failed)
	 77 - test_advection_nullVelocity (Failed)
	 79 - test_advection_randomVelocity (Failed)