Fixed compilation errors due to changes in OnKeyDown/OnKeyUp.

git-svn-id: http://svn.purei.org/purei/trunk@1249 b36208d7-6611-0410-8bec-b1987f11c4a2
Added PsfPathToken system to fix the limitation of boost::filesystem::path. fs::path is good for representing a real filesystem path, but doesn't play well with virtual filesystems such as the PsfArchive filesystem because it is dependent on the system's locale. Could cause problems on iOS.

git-svn-id: http://svn.purei.org/purei/trunk@1250 b36208d7-6611-0410-8bec-b1987f11c4a2
Fixed compilation on iOS.

git-svn-id: http://svn.purei.org/purei/trunk@1251 b36208d7-6611-0410-8bec-b1987f11c4a2