Switch to the TRKLT in the tracker. Fix a compile issue.
Switch to the TRKLT in the tracker. Fix a compile issue.

Nazg-Gul/libmv,petertsoi/libmv,Nazg-Gul/libmv,SoylentGraham/libmv,rgkoo/libmv-blender,SoylentGraham/libmv,rgkoo/libmv-blender,SoylentGraham/libmv,petertsoi/libmv,rgkoo/libmv-blender,keir/libmv,petertsoi/libmv,Nazg-Gul/libmv,keir/libmv,rgkoo/libmv-blender,Nazg-Gul/libmv,keir/libmv,petertsoi/libmv,Nazg-Gul/libmv,SoylentGraham/libmv,rgkoo/libmv-blender,keir/libmv