1) Implement nsDirectoryService. This makes the service extensible so that
components can do delayed registration.
2) Fixes windows Append meathod which did not work with . prepended files.
3) Fixes memory leaks in nsDirectoryService
4) Fixes SetPermissions() on Win32. This was in my tree for a while. It basically
calls through to chmod just like on unix.
5) Fixes GetModificationDate. Win32 now return PRTime for dates.
r = scc, valeski, warren, wtc (suggestions)
a = jevering
git-svn-id: svn://10.0.0.236/trunk@61389 18797224-902f-48f8-a5cc-f745e15eee43
6cea14f715