sync
sync
fixing FCT with multiple equations
params_t cleanup (preparing for passing nx, ny, n_eqs, n_iter, ... via params_t
G allocatio, first G formulae
Merge github.com:slayoo/libmpdataxx

Conflicts:
	libmpdata++/solvers/adv/detail/mpdata_common.hpp
	libmpdata++/solvers/adv/detail/solver_1d.hpp
adding a test for nug option