changed FileReader and CSVFileReader classes -- moved incrementRowNum()
added test case for checking the behavior of the methods of 'error-records-handling'
updated td-bulk-import.jar
added 'apache' common log format to 'format' option of 'prepare_parts'
prototyped test case of ApacheFileReader class
changed CHANGES.txt
added 'syslog' format to 'prepare_parts' option. it allows users to translate syslog files to msgpack.gz files
prototyped test case of SyslogFileReader class