Added setting for session directory.

Added support for quotation in settings.

Added key for changing the priority of all files in a torrent.


git-svn-id: svn://rakshasa.no/libtorrent/trunk/rtorrent@477 e378c898-3ddf-0310-93e7-cc216c733640

src/utils/directory.cc

@@ -31,6 +31,17 @@
 
 namespace utils {
 
+bool
+Directory::is_valid() const {
+  if (m_path.empty())
+    return false;
+
+  DIR* d = opendir(m_path.c_str());
+  closedir(d);
+
+  return d;
+}
+
 bool
 Directory::update() {
   if (m_path.empty())