A BRIEF HISTORY OF REMIND:

Version 1.0 - never publicly released.

Version 2.0 - first public release.  Included advanced date specifications,
character substitution, and the RUN keyword.

Version 2.1 - Added the "repeat" token for repeating reminders with a period
other than 7 days.  Also fixed some bugs from version 2.0

Version 2.2 - Added the AT keyword, the timed reminders daemon, and the
calendar facility.

Version 2.2 - Patch 3  - Added the MSG or RUN tokens in an OMIT command; also
allowed RUN-type reminders to be explicitly included in the calendar by
using the %" escape sequence.

Version 2.2 - Patch 5 - Added the BEFORE, AFTER and SKIP tokens to make the
handling of holidays more sensible.  Also corrected a few more bugs.

Version 2.3 - Added the UNTIL keyword for forcing reminders to expire.

Added the "++" form of 'back' and the "--" form of 'delta' for
ignoring OMIT information.

Added the CLEAR-OMIT-CONTEXT, PUSH-OMIT-CONTEXT and POP-OMIT-CONTEXT
keywords for isolating personal or peculiar reminders from the global
OMIT context.

Speeded up the parsing of tokens.

Changed the source to recognize and exploit ANSI-C compilers which
accept function prototypes.

Added the "-n" option to output the next occurrence of each reminder
in SimpleCalendar format

Modified the calendar and SimpleCalendar formats so that the % escape
substitutions ARE performed.