Added 3D transport codes
Branch updated to reflect recent changes in pyne/staging
Merge branch 'staging' of https://github.com/pyne/pyne into transport-josh-dev
DGFEM/src_dgfem_lagrange_solver_dense converted to gnu
DGFEM/src_dgfem_complete_solver_dense converted to gfortran
DGFEM/src_LD_solver converted to gfortran
AHOTN/src_AHOTN_NEFD_gesv converted to gfortran
AHOTN/src_LL converted to gfortran
AHOTN/src_LN converted to gfortran
Attempted to convert step-sct.  Currently there is an error when testing the code.  Compile script runs fine.  Putting in my dev branch simply to show diffs
Removed unnesesary debug script
SCT-Step converted to gfortran
Added bc_4_sct.dat
reverted inp4 to use normal bc4 file; made a copy of it for the sct case. the regular inp4 can be used will all non-sct codes.
Merge pull request #2 from rachelslaybaugh/tmpdev

See commit comment, also
Made modifications to double precision flags in compile script and src_ahotn-step-sct/kernel_module.f90 to fix errors
Removed compiler precision flags from SCT-Step compile script
Changed precision values in SCT-Step/precision_module.f90
Revert "Changed precision values in SCT-Step/precision_module.f90"

This reverts commit c2caf4e34dff16020ec36080251db3575780705b.
Revert "Removed compiler precision flags from SCT-Step compile script"

This reverts commit a096cc2fba36672e4d7acbd3fc3ca5f6ff80bb9f.
Fixed typo in spatial_solvers_3d folder name