Allow paths in "Project Name" field when creating a new project

Previously, it was possible to quickly create a new project in a specific place by entering the path and a filename in the Project name field in the new project window.

i.e., Instead of entering a name in the first field and selecting a path in the second field, it was possible to simply enter "D:\Projects\My Project\Project Name" in the Project name field and the project was created in the path ""D:\Projects\My Project\Project Name.prproj". 

On the new project creation screen, this is no longer possible. The save location for a new project must be chosen using the Project location dropdown -> Choose Location..., and attempting to enter a path in the Project name field results in an error.