added: to mount points: file systems

we have two file systems now:
       - simplefs - the files stored on the hard drive have the same structure as in the database (dir1/dir2/file)
       - hashfs - files are stored in special directories
extented: the mountparser can read file system 
added: function download
       this is a default function for items which have static content
  


git-svn-id: svn://ttmath.org/publicrep/winix/trunk@588 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/misc.h

@@ -64,6 +64,8 @@ bool ValidateEmail(const std::string & email);
 
 bool IsFile(const char * file);
 bool IsFile(const std::string & file);
+bool CreateDir(const char * dir, int priv);
+bool CreateDir(const std::string & dir, int priv);
 
 const char * GetFileExt(const char * name);
 Item::StaticAuth SelectFileType(const char * file_name);