Window: fix crash on Windows(tm) when the user name contain an non ascii char. (exists() works, but pygame don't found the file. will fill a but against pygame.)
Window: fix crash on Windows(tm) when the user name contain an non ascii char.
(exists() works, but pygame don't found the file. will fill a but against pygame.)

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