changed: DirContainer - uses std::list instead of std::vector as the main container

we do not have to rebuild indexes after deleting some items
added:   DirContainer::DelById(long id)
changed: Dirs::CheckRootDir() addes the root dir if there is no one
added:   Dirs::DeleteDir(long id) - deletes specified directory (and its contents)
         (from the cache and the database)
added:   Db::DelDirById(long id) - deletes a dir from the database 
         and its first children
added:   standard function rm can delete directories


git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@487 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/dirs.h

@@ -24,19 +24,6 @@
 
 class Dirs
 {
-
-private:
-public: // !! temporarily
-
-
-	DirContainer dir_table;
-
-	bool ExtractName(const char * & s, std::string & name);
-	void CheckRootDir();
-	
-	
-	
-	
 public:
 
 	void Clear();
@@ -86,6 +73,20 @@ public:
 	
 	static void SplitPath(const std::string & path, std::string & dir, std::string & file);
 
+
+	void DeleteDir(long id);
+	
+
+	void CheckRootDir();
+
+	
+private:
+
+	DirContainer dir_table;
+
+	bool ExtractName(const char * & s, std::string & name);
+	
+	
 };