update 7.1.0

WHAT'S NEW??

• added time periods (e.g. :: from 2 oct to 4 oct ::)
• added more natural expressions (e.g. :: this monday to next friday ::)
• data.json now autoclears non-existing tasks every 12 hours (customizable) to stop wasting space (alth it wont take up much space anyway)
• bug fixes
  • fixed bug where "renaming" a task would make the plugin lose track of it and therefore the task's schedule would be gone

WHAT'S NEXT??

• probably add a purge button to purge all task schedules before a certain date or during a certain time period