Added tracking properties to systems.
Added tracking properties to systems.

FedericoTomas/codecombat,slacker88/codecombat,leendek/codecombat,TeodorMihai/codecombat,hujianfei1989/codecombat,teresacream/codecombat,anonymousch/codecombat,anirudhnr2015/codecombat,UltCombo/codecombat,weevilgenius/codecombat,askeing/codecombat,Minhir/codecombat,jhoon/codecombat,jeremyprice/codecombat,zhangxiuquan/codecombat,zhangxiuquan/codecombat,lasershow/codecombat,duybkict/codecombat,hujianfei1989/codecombat,pooky-lin/codecombat,dyhpoon/codecombat,amit2103/codecombat,Ye-Yong-Chi/codecombat,chooowai/codecombat,probil/codecombat,tuomastanner/codecombat,wanchouchou/codecombat,UltCombo/codecombat,anonymousch/codecombat,teresacream/codecombat,VilkkuV/codecombat,FedericoTomas/codecombat,dboyliao/codecombat,khoa102/codecombat,anirudhnr2015/codecombat,anonymousch/codecombat,wangjun/codecombat,trotod/codecombat,nixel2007/codecombat,codecombat/codecombat,laituan245/codecombat,bkiehl/lol,Diprm77/codecombat,feifacz/codecombat,teresacream/codecombat,TeodorMihai/codecombat,lasershow/codecombat,AlanHohn/codecombat,yapkn/codecombat,justinleoye/codecombat,Zerrien/codecombat,giaba90/codecombat,jequal/codecombat,jeremyprice/codecombat,weevilgenius/codecombat,pougounias/codecombat,anirudhnr2015/codecombat,AkaKaras/codecombat,nixel2007/codecombat,nimda7/codecombat,5y/codecombat,cherub0526/codecombat,wolut/codecombat,javatlacati/codecombat,probil/codecombat,AlanHohn/codecombat,tcxhxx/codecombat,wgsu/codecombat,Cooky8197/codecombat,GraysonP/codecombat-1,ingedmundo/codecombat,EmbraceLife/codecombat,dboyliao/codecombat,probil/codecombat,hujianfei1989/codecombat,AkaKaras/codecombat,tcxhxx/codecombat,MonkStrom/codecombat,jumarko/codecombat,D0rm1nd0/codecombat,kumabotz/codecombat,wanchouchou/codecombat,bsmr-x-script/codecombat,TsubameDono/codecombat,weevilgenius/codecombat,khoa102/codecombat,codecombat/codecombat,teffy/codecombat,justinleoye/codecombat,feifacz/codecombat,icodegame/codecombat,MonkStrom/codecombat,ZephyrSails/codecombat,lasershow/codecombat,differentmatt/codecombat,Cooky8197/codecombat,PatrickShelby/codecombat,rao1219/codecombat,mnogi/codecombat,yapkn/codecombat,slacker88/codecombat,leendek/codecombat,kumabotz/codecombat,Ikuyadeu/codecombat,TsubameDono/codecombat,ecemm/codecombat,edtrist/codecombat,geekchy/codecombat,ilo/codecombat,5y/codecombat,nullsquid/codecombat,duybkict/codecombat,ycaihua/codecombat,yapkn/codecombat,jacobakkerboom/codecombat,nullsquid/codecombat,UltCombo/codecombat,tcxhxx/codecombat,ecemm/codecombat,eschuler21/codecombat,s2prod/codecombat,icodegame/codecombat,javatlacati/codecombat,GraysonP/codecombat-1,PatrickShelby/codecombat,Fokusnica/codecombat,Driphter/codecombat,Cooky8197/codecombat,anonymousch/codecombat,jeremiahyan/codecombat,aashaka/codecombat,teffy/codecombat,wangjun/codecombat,zhangxiuquan/codecombat,Driphter/codecombat,differentmatt/codecombat,wanchouchou/codecombat,cundamic/codecombat,JordanLittell/codecombat,amit2103/codecombat,Zacharias030/codecombat,ilo/codecombat,bsmr-x-script/codecombat,kidaa/codecombat,javatlacati/codecombat,jhoon/codecombat,giaba90/codecombat,laituan245/codecombat,thejdeep/codecombat,nullsquid/codecombat,geekchy/codecombat,tuomastanner/codecombat,tcxhxx/codecombat,jacobakkerboom/CodeCombat2,jacobakkerboom/codecombat,eschuler21/codecombat,Akhuta/codecombat,s2prod/codecombat,nimda7/codecombat,jeremiahyan/codecombat,thejdeep/codecombat,Layle77/codecombat,tpai/codecombat,VilkkuV/codecombat,lasershow/codecombat,The-Alchemist/codecombat,Diprm77/codecombat,Zacharias030/codecombat,kumabotz/codecombat,ecemm/codecombat,pooky-lin/codecombat,s2prod/codecombat,Akhuta/codecombat,anirudhnr2015/codecombat,Fokusnica/codecombat,wangjun/codecombat,ReturntoZero/codecombat,khoa102/codecombat,JordanLittell/codecombat,cherub0526/codecombat,rao1219/codecombat,zhangxiuquan/codecombat,EmbraceLife/codecombat,nixel2007/codecombat,MonkStrom/codecombat,wangjun/codecombat,nixel2007/codecombat,VilkkuV/codecombat,dyhpoon/codecombat,askeing/codecombat,ingedmundo/codecombat,ZephyrSails/codecombat,Ikuyadeu/codecombat,TeodorMihai/codecombat,pougounias/codecombat,rohmunhoz/codecombat,D0rm1nd0/codecombat,wolut/codecombat,duybkict/codecombat,tuomastanner/codecombat,jequal/codecombat,rodeofly/rodeofly.github.io,kumabotz/codecombat,q1ang/codecombat,nimda7/codecombat,pougounias/codecombat,ycaihua/codecombat,codecombat/codecombat,SephVelut/codecombat,Diprm77/codecombat,javatlacati/codecombat,Driphter/codecombat,Akhuta/codecombat,giaba90/codecombat,codecombat/codecombat,cundamic/codecombat,Zerrien/codecombat,TsubameDono/codecombat,ecemm/codecombat,bkiehl/lol,jacobakkerboom/codecombat,feifacz/codecombat,rohmunhoz/codecombat,ingedmundo/codecombat,icodegame/codecombat,Zerrien/codecombat,rodeofly/rodeofly.github.io,q1ang/codecombat,ReturntoZero/codecombat,5y/codecombat,rohmunhoz/codecombat,JordanLittell/codecombat,ycaihua/codecombat,yapkn/codecombat,laituan245/codecombat,cherub0526/codecombat,rao1219/codecombat,jacobakkerboom/codecombat,jumarko/codecombat,cundamic/codecombat,GraysonP/codecombat-1,amit2103/codecombat,fabichoi/codecombat,zuihun/codecombat,nimda7/codecombat,pooky-lin/codecombat,Diprm77/codecombat,fabichoi/codecombat,jacobakkerboom/CodeCombat2,ilo/codecombat,justinleoye/codecombat,rohmunhoz/codecombat,javatlacati/codecombat,Zerrien/codecombat,jacobakkerboom/CodeCombat2,wolut/codecombat,The-Alchemist/codecombat,geekchy/codecombat,rodeofly/rodeofly.github.io,kidaa/codecombat,jacobakkerboom/CodeCombat2,askeing/codecombat,jeremyprice/codecombat,geekchy/codecombat,AkaKaras/codecombat,AlanHohn/codecombat,bkiehl/lol,Cooky8197/codecombat,weevilgenius/codecombat,wanchouchou/codecombat,abhisekp/codecombat,AkaKaras/codecombat,UltCombo/codecombat,jeremiahyan/codecombat,mnogi/codecombat,dboyliao/codecombat,trotod/codecombat,teffy/codecombat,FedericoTomas/codecombat,probil/codecombat,sarahjean/codecombat,Ye-Yong-Chi/codecombat,TeodorMihai/codecombat,pooky-lin/codecombat,tpai/codecombat,pougounias/codecombat,q1ang/codecombat,Minhir/codecombat,eschuler21/codecombat,Driphter/codecombat,MonkStrom/codecombat,slacker88/codecombat,cundamic/codecombat,sarahjean/codecombat,ycaihua/codecombat,Ye-Yong-Chi/codecombat,ZephyrSails/codecombat,leendek/codecombat,EmbraceLife/codecombat,abhisekp/codecombat,Minhir/codecombat,zuihun/codecombat,kidaa/codecombat,JordanLittell/codecombat,jhoon/codecombat,Fokusnica/codecombat,duybkict/codecombat,fabichoi/codecombat,mads232/codecombat,VilkkuV/codecombat,jequal/codecombat,SephVelut/codecombat,dyhpoon/codecombat,feifacz/codecombat,Layle77/codecombat,ReturntoZero/codecombat,zuihun/codecombat,abhisekp/codecombat,The-Alchemist/codecombat,leendek/codecombat,SephVelut/codecombat,Ikuyadeu/codecombat,jeremiahyan/codecombat,bkiehl/lol,jhoon/codecombat,Layle77/codecombat,wgsu/codecombat,trotod/codecombat,amit2103/codecombat,cherub0526/codecombat,mads232/codecombat,sarahjean/codecombat,TsubameDono/codecombat,ilo/codecombat,giaba90/codecombat,mads232/codecombat,thejdeep/codecombat,justinleoye/codecombat,dboyliao/codecombat,s2prod/codecombat,Zacharias030/codecombat,abhisekp/codecombat,Fokusnica/codecombat,mnogi/codecombat,icodegame/codecombat,Zacharias030/codecombat,zuihun/codecombat,The-Alchemist/codecombat,edtrist/codecombat,fabichoi/codecombat,GraysonP/codecombat-1,slacker88/codecombat,codecombat/codecombat,chooowai/codecombat,dyhpoon/codecombat,laituan245/codecombat,Ye-Yong-Chi/codecombat,jeremyprice/codecombat,tpai/codecombat,tpai/codecombat,differentmatt/codecombat,rao1219/codecombat,teffy/codecombat,chooowai/codecombat,edtrist/codecombat,askeing/codecombat,aashaka/codecombat,D0rm1nd0/codecombat,wgsu/codecombat,wolut/codecombat,wgsu/codecombat,Minhir/codecombat,ingedmundo/codecombat,differentmatt/codecombat,aashaka/codecombat,Layle77/codecombat,aashaka/codecombat,jequal/codecombat,bsmr-x-script/codecombat,nullsquid/codecombat,chooowai/codecombat,Akhuta/codecombat,PatrickShelby/codecombat,hujianfei1989/codecombat,jumarko/codecombat,rodeofly/rodeofly.github.io,edtrist/codecombat,kidaa/codecombat,SephVelut/codecombat,trotod/codecombat,q1ang/codecombat,thejdeep/codecombat,bsmr-x-script/codecombat,AlanHohn/codecombat,mnogi/codecombat,eschuler21/codecombat,khoa102/codecombat,teresacream/codecombat,ReturntoZero/codecombat,PatrickShelby/codecombat,jumarko/codecombat,mads232/codecombat,Ikuyadeu/codecombat,tuomastanner/codecombat,sarahjean/codecombat,EmbraceLife/codecombat