filechooser: handle oserror for _add_files same as other entry point in the class. However, we still don't have a way to known when an error is happening. Maybe on_error event ?. Closes #116
filechooser: handle oserror for _add_files same as other entry point in the class. However, we still don't have a way to known when an error is happening. Maybe on_error event ?. Closes #116

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