textproc/minised 1.16 DragonFly

This is a smaller, cheaper, faster SED implementation. Minix uses it. GNU used to use it, until they built their own sed around an extended (some would say over-extended) regexp package.

For embedded use we searched for a tiny sed implementation especially for use with the dietlibc and found Eric S. Raymond's sed implementation quite handy. Though it suffered several bugs and was not under active maintenance anymore. After sending a bunch of fixes we agreed to continue maintaining this lovely, historic sed implementation.

Along with a lot fixes and cleanups, further speedups, and some missing features and POSIX conformance, we also added a test-suite to the package, so regressions are quickly and easily uncovered.