Build man pages based on release date

We build the man pages for a repo based on a release date now, which
greatly simplifies the process.  The extra benefit is compiled man
pages are now consistent across all installations instead of dated
based on when a repo was built.
Merge branch 'feature/man-pages' into c-template

* feature/man-pages:
  Build man pages based on release date
Fatal warnings with Intel compiler

We want -Wall and -Werror with Intel's compiler, too.