Ability to create a task

[matous-volf]

The user should be able to create a task with its properties:

• title
• deadline (optional)
• category – one of:
  • inbox
  • someday maybe
  • waiting
  • for – a note
  • next
  • calendar
  • date or reoccuring
  • time (optional)
  • notification (optional, default: the time)
  • done
  • trash
  • long term
• project (optional)