v2.0.0

Release 2.0.0 - Some Major Updates

• Introduce relative times (eg: remindme "take out the trash" 1d 2h 30m)
• Use the ISO 8601 date format (YYYY/MM/DD), instead of MM/DD/YYYY
• Display reminders in a sexy table
• Update help message

Full Changelog: v1.0.0...v2.0.0