Release 3.0.0

Breaking changes

• Rename cartesianArray() and cartesianIterate() to array() and
  iterate()
• An array of arguments must now be used instead of variadic arguments.
  array(...args) is now array(args) and iterate(...args) is now
  iterate(args).

Features

• iterate() can now handle an infinite number of combinations
• Each dimension passed to iterate() can now be not only an array but also a
  generator function.