It’s been moved to the ‘Project’ menu towards the bottom after selecting the project or folder:

Sources: http://connect.microsoft.com/VisualStudio/feedback/details/806246/visual-studio-2013-web-forms-conver-to-web-applications
It’s been moved to the ‘Project’ menu towards the bottom after selecting the project or folder:

Sources: http://connect.microsoft.com/VisualStudio/feedback/details/806246/visual-studio-2013-web-forms-conver-to-web-applications