0.2.0: RFC compliance

• Made it possible to shorten array by allowing the remove operation in
  conjunction with "-". This is not specified by the RFC, but I've seen
  it implemented in other places.
  (@thekid)
• Made it possible to modify, add and remove "-" keys from objects.
  (@thekid)
• Fixed RFC compliance problem: Numbers must be numerically equal, not
  strictly; meaning 1.0 equals 1 (and vice versa).
  (@thekid)

0.1.0: Hello world

• Hello World! First release - @thekid