Update solver_direct_mean.cpp

Heatflux computation fixed by using UnitNormal, rather than Normal
Merge pull request #78 from jvanoostrom/master

Bugfix Heatflux (correct pull request)
Normally we would want to merge both to and from develop (yours is from master), but since there's not much different I think this one is ok.
Added additional force coefficient monitoring on a per surface basis. Fixes #67 Fixes #84
CAdjEulerSolver::BC_Interface_Boundary and CAdjEulerSolver::BC_NearField_Boundary are working again!
Merge branch 'develop' of https://github.com/su2code/SU2 into develop
Update config_structure.cpp
Update config_structure.hpp
Update config_structure.inl
Update integration_time.cpp
Updated SetIntBoundary_Jump
Update config_structure.inl
Update config_structure.hpp
Update option_structure.hpp
Update config_structure.cpp
Update integration_time.cpp
Update option_structure.hpp
Update integration_time.cpp
Updated Section_Location in US units
More updates
Added Cp to section cuts.