Add .gitattributes file to deal with line-endings problem.
Add .gitattributes file to deal with line-endings problem.

JuKa87/OpenMx,jpritikin/OpenMx,JuKa87/OpenMx,JuKa87/OpenMx,mhunter1/OpenMx,JuKa87/OpenMx,mhunter1/OpenMx,JuKa87/OpenMx,mhunter1/OpenMx,mhunter1/OpenMx,jpritikin/OpenMx,jpritikin/OpenMx,mhunter1/OpenMx,mhunter1/OpenMx,jpritikin/OpenMx,JuKa87/OpenMx,jpritikin/OpenMx,jpritikin/OpenMx