Update license date on all files. No functional changes.
Include __BEGIN_DECLS and __END_DECLS (i.e., extern "C" blocks) to play
well with C++.
Update licenses to 2017.
Update license. No code changes.
Include copyright in all files. There are scripts to do bulk
replacement of the copyright if desired.
Clean up video and special character handling for piped output.
Add some more special character set symbols.
Add "unprintable" character for use in the ASCII part of hex dumps.
Redo spacing changes (but in a very limited way). At this point tabs
(hard, soft, and shiftwidth) are four characters.
Add some new special characters to EpChar (+/-, times, divide, not equal,