This stable release of WebGUI 7.8.15 contains fixes for the fileUpload script,
packed templates, default template privileges, Subscribable AssetAspect,
Collaboration System, Calendar, importing packages, Page Layout, and
the FilePump macro.

Changelog:
 - fixed #11453: fileUpload.pl does not handle files with spaces, overwriting
 - fixed #11458: Use packed template removes wanted whitespace
 - fixed #11459: "default template" warning after upgrade to 7.8.14
 - fixed #11456: Delete a wiki (Reopen #11446 - subscription groups)
 - fixed #11464: blank page after setting posts per page in Collaboration System to 0 (zero)
 - fixed #11472: View Calendar Month help missing
 - fixed #11471: Errors in Calendar Event Edit template (Dale Trexel / U of MN Law School)
 - fixed #11475: Inherit permissions on imported package fails if asset already exists.
 - fixed #11476: Missing override in Page Layout shortcut
 - fixed: Unable to add threads with permission to edit CS but not in post group
 - fixed #11478: Overzealous removal of double slashes in FilePump macro