Revision history for IO-Routine:
--------------------------------

0.36      2014-06-17 11:39:49 America/Chicago
	  Minute(s) timer corrected to move onto hours.

0.35      2013-12-17 15:15:36 America/Chicago
	  Error quits without displaying POD. User
	  can always use '-h|--help'. Avoids displaying
	  long POD when program quits with error message.

0.34      2013-12-04 09:33:40 America/Chicago
	  The error subroutine checks for the presence of POD file.

0.32      2013-10-23 12:45:17 America/Chicago
	  Fixed a bug with exist_sys_cmd(). It was not using "which" command.

0.31      2013-10-18 15:48:45 America/Chicago
          Fixed a bug with exist_sys_cmd() wherein the blessed object was not being
          passed to error() method.

0.30      2013-10-17 15:00:17 America/Chicago
	  Fixed a bug with method check_sys_level_cmds() and it now has an extra 
	  level of failover.

0.27      2013-10-10 09:40:43 America/Chicago
	  Many additions / insertions / deletetions to fix several bugs and
	  added many features.

0.07      2013-26-09
	  Adding timer functions to calculate elapsed time and a function
	  to return timestamp using localtime().

0.06      2013-08-28 
	  Sixth version. Adding support to get memory information based on PID
	  for OS X.

0.05      2013-08-06
	  Fivth version. Many bug fixes.

0.01      2012-12-21
	  First version, released on an unsuspecting world.
