-Fixed bug where vp background grid was written to file instead of vs and rho.
-Added ApplyFilter function to combined background grids.
-Moved ApplyFilter to commondata.h (to use template)
-Fixed issue with prior prob. If one prior prob is given and we have multiple interval, we copy the probabilites to all intervals. In this case a removal of empty interval prior prob was added.
-Fixed bug where vp background grid was written to file instead of vs and rho. -Added ApplyFilter function to combined background grids. -Moved ApplyFilter to commondata.h (to use template) -Fixed issue with prior prob. If one prior prob is given and we have multiple interval, we copy the probabilites to all intervals. In this case a removal of empty interval prior prob was added.