Cfv

* Fixed reading md5sum files that had dos eol on non-dos systems.
* Loosened .sfv file recognition all the way.
* Added --help alias for -h.
* Added --version.

* Made ignore case option always search for correct filename if using show unverified files mode. Fixes problem with incorrectly showing some files as unverified on FAT drives.
* Caches dir entries for much faster ignore case operation.
* Accepts - to represent stdin for data source and/or stdout for destination of checksums.
* Added -VV option.
* Errors printed to stderr instead of stdout.
* Uses class instances instead of imp module for checksum types.
* If using fchksum module, you now need at least version 1.2 (due to stdin ability).

* Added ignore case option.
* Added fix paths option.
* Added handler for csv files with the dir seperate from the file name (-t csv4).
* Makes any absolute paths found in checksum files into relative paths.
* Added show paths option.

* Added test suite.
* Fixed 'x not in list' error when using -u and checksum file was not among the files to be tested. (First bug found with test suite ;)
* Exits with non-zero status if any errors occured.

* Fixed install wrapper stuff to compile _after_ it has been installed into the target dir.

* Fixed "illegal argument type" error when creating csv format files.
* Added note to manpage about -rr and path seperators.
* Added show unverified files option.
* Fixed md5 file testing when specifying files to test as command line args.