bugs in main, so we're pushing a bit early (bellhyve#31)

* Fix awk regression, output and summary fixes (bellhyve#26)

* remove unicode

* fixed mawk regression

* add mawk note to zelta.env

* logging and output fixes, add zfs send -w for encrypted datasets

* Replicate progress mode (bellhyve#27)

* streamline output method options, some progress toward better pv

* improved option handling a little bit of policy improvement

* Policy upgrade (bellhyve#29)

* added overrides of polciy options using --long-options; needs clean-up

* cleanup reporting and overrides

* Pre release tidy (bellhyve#30)

* renamed problematic "volume" references to "dataset"

* bugfixes and lint-checking using "gawk --lint"

* add LICENSE

* fix license width

* drop "zelta match" for written checks

* doc review

* doc prune, moved stuff to wiki