Add start of tracker base classes; not there yet though.
Add start of tracker base classes; not there yet though.
leoujz/libmv,Danath/libmv,tanmengwen/libmv,tanmengwen/libmv,KangKyungSoo/libmv,jackyspeed/libmv,Shinohara-Takayuki/libmv,Ashwinning/libmv,leoujz/libmv,pombreda/libmv,hjm168168/libmv,sanyaade-g2g-repos/libmv,hjm168168/libmv,guivi01/libmv,Danath/libmv,sanyaade-g2g-repos/libmv,hjm168168/libmv,Ashwinning/libmv,manjunathnarayana/libmv,Danath/libmv,guivi01/libmv,manjunathnarayana/libmv,pombreda/libmv,KangKyungSoo/libmv,jackyspeed/libmv,Shinohara-Takayuki/libmv,tanmengwen/libmv,guivi01/libmv,jackyspeed/libmv,Shinohara-Takayuki/libmv,manjunathnarayana/libmv,KangKyungSoo/libmv,manjunathnarayana/libmv,KangKyungSoo/libmv,pombreda/libmv,sanyaade-g2g-repos/libmv,Danath/libmv,pombreda/libmv,hjm168168/libmv,leoujz/libmv,sanyaade-g2g-repos/libmv,jackyspeed/libmv,leoujz/libmv,Ashwinning/libmv,guivi01/libmv,Ashwinning/libmv,tanmengwen/libmv,Shinohara-Takayuki/libmv