+-O-----O-+     ____        __     _       ____              __ 
|  J A N  |    / __ \____ _/ /____| |     / / /_  ___  ___  / /
|---------|   / / / / __ `/ __/ _ \ | /| / / __ \/ _ \/ _ \/ /
|   3 0   |  / /_/ / /_/ / /_/  __/ |/ |/ / / / /  __/  __/ /
+---------+ /_____/\__,_/\__/\___/|__/|__/_/ /_/\___/\___/_/

Add (or subtract) a number of days times a multiplier to the given date, useful 
for calculating when a prescription can be filled, for example, 80% of the
filled day supply added to the date it was filled.

This software, by default, sends the following anonymous usage statistics to
LT Stauffer whenever a calculation is performed: the name of the application,
the version of the application, and current date and time. If you would like to
opt out of this data collection, please contact LT Stauffer.

Copyright (C) 2019 LT Nicholas Stauffer, PharmD <nicholas.stauffer@ihs.gov>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

USAGE INSTRUCTIONS:
- Double click the `Launch DateWheel.bat' file to launch the program. You can
  make shortcuts to this launcher. I recommend just having the program in a 
  central location on the network S drive and having users launch it with the
  launcher shortcut instead of each person having their own copy of the program.

- Enter the starting date for the calculation. You can use a variety of input
  formats, but you must include the four-digit year. Instead of entering a
  specific date, you can also enter a date relative to today, for example,
  t-14 for 14 days ago, or T+1y from today, or t+3m for 3 months from today.
  The letters are case insensitive.

- The program will then ask you to enter the number of days to add, times a
  multiplier. For example, enter 30 to calculate 30 days after the starting
  date. Or, enter 90x.8 to calculate 80% of 90 days, which equals 72 days,
  after the starting date. Enter a negative number if you want to subtract.
  For the multiplier, you may include or leave off the leading zero from the
  decimal. You may also use X or * or , instead of x.
