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.
Implement ECDSA signing (and set it to be the default). This also
augments log-view to print the details of keys (and makes the print
routines available in the ep_crypto code).
Redo spacing changes (but in a very limited way). At this point tabs
(hard, soft, and shiftwidth) are four characters.
Remove most of the vestiges of the old libep, such as EP_NULL, EP_STREAM,
EpStStderr, ep_st_printf, and so forth.