deleted some dead options
Bug in dual time source term for turb models.
Changed the viscous jacobian and added the diffusion terms to the viscous fluxes
Merge branch 'master' of https://github.com/su2code/SU2
Merge branch 'master' of https://github.com/su2code/SU2 into feature_UpwindPrimVar
Updated turbulence model, including 2nd order (check JST)