Enhancements to UTIL/PURGE/FILES and UTIL/PARADIGM/LIBRARY.
Commit PWB.COPY.zip with 2020-02-27 updates.
Enable PWB/COPY to copy FILEKIND=CONTAINERDATA files as *.con and
Commit initial UTIL/PARADIGM/REXREP utility program for search-and-replace in files across a directory.
Fix bug: empty disk files were not being closed before being skipped,
Commit changes to suppress copying of byte-stream files (SW1=TRUE) and inhibit appending PWB-style extensions to the final node name of byte-stream files (SW2=FALSE). Inhibit copying of empty files, including the so-called PERMDIR "DOSDIR" files.
Commit updated release zip file.
Commit README updates missed in last commit.