core/window: big changes to rely on properties. Now all other core providers should do the same, and avoid usage of Python properties.
core/window: big changes to rely on properties. Now all other core providers should do the same, and avoid usage of Python properties.

bliz937/kivy,Davideddu/kivy-forkedtouch,eHealthAfrica/kivy,iamutkarshtiwari/kivy,kivatu/kivy-bak,VinGarcia/kivy,Farkal/kivy,denys-duchier/kivy,thezawad/kivy,Cheaterman/kivy,cbenhagen/kivy,Ramalus/kivy,bionoid/kivy,akshayaurora/kivy,hansent/kivy,mSenyor/kivy,jegger/kivy,habibmasuro/kivy,xiaoyanit/kivy,wangjun/kivy,ernstp/kivy,aron-bordin/kivy,bionoid/kivy,ehealthafrica-ci/kivy,xiaoyanit/kivy,darkopevec/kivy,jkankiewicz/kivy,tony/kivy,kivy/kivy,Shyam10/kivy,kivatu/kivy-bak,hansent/kivy,thezawad/kivy,angryrancor/kivy,yoelk/kivy,viralpandey/kivy,adamkh/kivy,aron-bordin/kivy,denys-duchier/kivy,iamutkarshtiwari/kivy,xpndlabs/kivy,vitorio/kivy,tony/kivy,arcticshores/kivy,jegger/kivy,gonzafirewall/kivy,bob-the-hamster/kivy,tony/kivy,Cheaterman/kivy,JohnHowland/kivy,yoelk/kivy,darkopevec/kivy,CuriousLearner/kivy,hansent/kivy,ernstp/kivy,bhargav2408/kivy,angryrancor/kivy,rafalo1333/kivy,Davideddu/kivy-forkedtouch,adamkh/kivy,rnixx/kivy,arlowhite/kivy,Cheaterman/kivy,Ramalus/kivy,manthansharma/kivy,Davideddu/kivy-forkedtouch,bliz937/kivy,janssen/kivy,JohnHowland/kivy,Shyam10/kivy,wangjun/kivy,vipulroxx/kivy,manashmndl/kivy,kivy/kivy,jkankiewicz/kivy,xiaoyanit/kivy,cbenhagen/kivy,arcticshores/kivy,vitorio/kivy,angryrancor/kivy,zennobjects/kivy,youprofit/kivy,el-ethan/kivy,autosportlabs/kivy,zennobjects/kivy,kived/kivy,jkankiewicz/kivy,Cheaterman/kivy,kived/kivy,niavlys/kivy,dirkjot/kivy,Farkal/kivy,wangjun/kivy,youprofit/kivy,bob-the-hamster/kivy,ehealthafrica-ci/kivy,bhargav2408/kivy,andnovar/kivy,mSenyor/kivy,bionoid/kivy,arlowhite/kivy,LogicalDash/kivy,JohnHowland/kivy,jehutting/kivy,akshayaurora/kivy,edubrunaldi/kivy,kivatu/kivy-bak,inclement/kivy,zennobjects/kivy,xpndlabs/kivy,kivatu/kivy-bak,wangjun/kivy,Shyam10/kivy,adamkh/kivy,MiyamotoAkira/kivy,jegger/kivy,dirkjot/kivy,denys-duchier/kivy,aron-bordin/kivy,habibmasuro/kivy,arcticshores/kivy,darkopevec/kivy,yoelk/kivy,eHealthAfrica/kivy,denys-duchier/kivy,MiyamotoAkira/kivy,dirkjot/kivy,inclement/kivy,rnixx/kivy,habibmasuro/kivy,angryrancor/kivy,bliz937/kivy,LogicalDash/kivy,zennobjects/kivy,jkankiewicz/kivy,kived/kivy,viralpandey/kivy,gonzafirewall/kivy,el-ethan/kivy,mSenyor/kivy,niavlys/kivy,janssen/kivy,MiyamotoAkira/kivy,hansent/kivy,jehutting/kivy,LogicalDash/kivy,ehealthafrica-ci/kivy,niavlys/kivy,matham/kivy,andnovar/kivy,Ramalus/kivy,matham/kivy,VinGarcia/kivy,autosportlabs/kivy,gonzafirewall/kivy,arcticshores/kivy,cbenhagen/kivy,CuriousLearner/kivy,autosportlabs/kivy,VinGarcia/kivy,ernstp/kivy,niavlys/kivy,JohnHowland/kivy,youprofit/kivy,CuriousLearner/kivy,KeyWeeUsr/kivy,rafalo1333/kivy,MiyamotoAkira/kivy,jffernandez/kivy,vipulroxx/kivy,edubrunaldi/kivy,manthansharma/kivy,janssen/kivy,jehutting/kivy,manthansharma/kivy,janssen/kivy,eHealthAfrica/kivy,xpndlabs/kivy,Farkal/kivy,edubrunaldi/kivy,KeyWeeUsr/kivy,yoelk/kivy,vipulroxx/kivy,LogicalDash/kivy,akshayaurora/kivy,eHealthAfrica/kivy,andnovar/kivy,KeyWeeUsr/kivy,vipulroxx/kivy,jegger/kivy,KeyWeeUsr/kivy,thezawad/kivy,arlowhite/kivy,iamutkarshtiwari/kivy,el-ethan/kivy,jffernandez/kivy,rnixx/kivy,aron-bordin/kivy,bob-the-hamster/kivy,viralpandey/kivy,manashmndl/kivy,rafalo1333/kivy,inclement/kivy,bhargav2408/kivy,ehealthafrica-ci/kivy,ernstp/kivy,jffernandez/kivy,matham/kivy,dirkjot/kivy,bob-the-hamster/kivy,Farkal/kivy,adamkh/kivy,jffernandez/kivy,darkopevec/kivy,vitorio/kivy,Shyam10/kivy,kivy/kivy,manthansharma/kivy,matham/kivy,manashmndl/kivy,bionoid/kivy,Davideddu/kivy-forkedtouch,gonzafirewall/kivy