Get rid of old parameters module

  modified:   pytriqs/applications/impurity_solvers/ctqmc_hyb/ctqmc_solver.pyx
  modified:   pytriqs/applications/impurity_solvers/hubbard_I/hubbard_solver.py
  deleted:    pytriqs/utility/parameters.py
Get rid of my_utils module

The module was just a collection of trivial things that were either never used
or used once. In the latter case, the corresponding function was moved.

  deleted:    pytriqs/utility/my_utils.py
  modified:   pytriqs/applications/dft/solver_multiband.py
  modified:   pytriqs/applications/dft/sumk_lda_tools.py
  modified:   pytriqs/applications/impurity_solvers/ctqmc_hyb/models.py
  modified:   pytriqs/applications/impurity_solvers/operators/operators.py
  modified:   pytriqs/gf/local/block_gf.py
  modified:   pytriqs/gf/local/descriptors.py
  modified:   pytriqs/gf/local/gf_generic.py
  modified:   pytriqs/lattice/super_lattice.py
  modified:   pytriqs/utility/CMakeLists.txt
  modified:   test/pytriqs/base/gf_base_op.py
Add Fourier for real gf's (part I)

The mesh 'W' looks fine. The half-bin one has not been tested
and there is still an issue with the 'F' one. Moreover only
the lazy fourier are activated for now. So there will be a
part II...

  new file:   triqs/gf/local/fourier_real.cpp
  new file:   triqs/gf/local/fourier_real.hpp
  modified:   pytriqs/gf/local/functions.pxd
  modified:   pytriqs/gf/local/refreq.pyx
  modified:   pytriqs/gf/local/retime.pyx
  modified:   triqs/gf/local/fourier_base.hpp
  modified:   triqs/gf/local/fourier_matsubara.cpp
  modified:   triqs/gf/local/fourier_matsubara.hpp