Tags
A Ruby object that acts like a set of tags.
Examples
tags = Tags.new("one, two, three")
tags - Tags.new("one, three")
# Tags.new("two")
tags + Tags.new("three, four, five")
# Tags.new("one, two, three, four, five")
tags.to_s
# "one, two, three"
tags.to_a
# ["one", "two", "three"]
# see the tests for more examples