Updated OmniXAML with fix for attached property on root instance.
Updated OmniXAML with fix for attached property on root instance.

jkoritzinsky/Avalonia,SuperJMN/Avalonia,akrisiun/Perspex,jazzay/Perspex,wieslawsoltes/Perspex,AvaloniaUI/Avalonia,SuperJMN/Avalonia,SuperJMN/Avalonia,wieslawsoltes/Perspex,jkoritzinsky/Avalonia,AvaloniaUI/Avalonia,SuperJMN/Avalonia,wieslawsoltes/Perspex,jkoritzinsky/Perspex,grokys/Perspex,jkoritzinsky/Avalonia,AvaloniaUI/Avalonia,jkoritzinsky/Avalonia,AvaloniaUI/Avalonia,susloparovdenis/Perspex,wieslawsoltes/Perspex,SuperJMN/Avalonia,AvaloniaUI/Avalonia,susloparovdenis/Avalonia,MrDaedra/Avalonia,punker76/Perspex,jkoritzinsky/Avalonia,AvaloniaUI/Avalonia,wieslawsoltes/Perspex,jkoritzinsky/Avalonia,OronDF343/Avalonia,grokys/Perspex,wieslawsoltes/Perspex,wieslawsoltes/Perspex,susloparovdenis/Perspex,AvaloniaUI/Avalonia,Perspex/Perspex,OronDF343/Avalonia,Perspex/Perspex,SuperJMN/Avalonia,susloparovdenis/Avalonia,jkoritzinsky/Avalonia,SuperJMN/Avalonia,MrDaedra/Avalonia