Minor Description
When bin/dump in version 1.10-trunk, there will be an exception saying "File name too long". When crawling, the length of the url may be longer than 255 bytes and nutch save the file using the url as file name. It can be saved in segments but when dumping the files to local file system, the length of the filename can not be longer than 255 bytes.
The FileDumper.java need to be changed to handle such exception.
