* -C no cleanup (use with -w if you need are using a cache directory.)
* -p prefix for translation md5 generator (directory that files are in, and is removed
* from path when generating an md5 for the translated name.
* -C no cleanup (use with -w if you need are using a cache directory.)
* -p prefix for translation md5 generator (directory that files are in, and is removed
* from path when generating an md5 for the translated name.