mwbzutils: version to 0.0.4, clean up in prep for debian packaging

* bump version to 0.0.4
* cleanup install, add deinstall targets
* make distclean actually do that
* generate man pages with help2man
* add or redo all usage messages to conform with help2man
* add version and copyright info to all programs
* pregenerate man pages (so we don't rely on binaries to generate them,
  this avoids problems with cross-platform builds someday in the
  far distant future)
* use generics in makefile
* fix up getopt calls

Change-Id: Id7ddd9edb5b2e22f896166a23cf49d28a010007b