Manager ajax urls when deployed to virtual directory

[jpcalv9]

In testing a Piranha Core site in IIS when deployed to a virtual directory ("/root/test" instead of just "/root"), ajax calls in the manager fail. I tracked it down to piranha.core/core/Piranha.Manager/assets/js/ui.js. Urls are being hard-coded like '/manager/post/region'. These should be generated in a .cshtml file using a Url helper so they are output as '/test/manager/post/region' in my case.

[tidyui]

Hi there! I can confirm that nothing in Piranha has ever been tested for running in a virtual directory.