v2.0.0

At long last, the official Zrep version 2.0, that is bash based, for greater portability.

At this point, bash(4.4?) seems to have absorbed almost every single feature I was using, that was previously specific to ksh.
Almost no tweaks were neccessary other than time format, and print -> echo.

Since true ksh is practically impossible to get these days... the future needs be bash based.

I hope everyone, new and old, will continue to get good use out of Zrep