added: program reads its configuration from a config file

added: confparser directory and confparser.h and confparser.cpp
       class ConfParser used to parse a config file
       this is a generic parser, can be used by another project
added: config.h, config.cpp
       class Config used for assigning values from 
       a config file into the data object
added: function for signals: SIGINT, SIGHUP
       after receiving SIGHUP the program will read
       its config file again


git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@463 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/db.cpp

@@ -35,6 +35,8 @@ void Db::Init(const std::string & d, const std::string & u, const std::string &
 
 void Db::Connect()
 {
+	Close();
+	
 	std::ostringstream buf;
 	buf << "dbname=" << db_database << " user=" << db_user << " password=" << db_pass;