0.7.2

• Added EmptyStringToDefault deserialization option, defaults to true.
  • When true, empty strings will be deserialized into the default value of the target IConvertible.
    For example s:0:""; deserialized to an integer yields 0.
    See issue #13 for details.
• Fixed a regression introduced in 0.7.1 where some data would no longer parse correctly (#12) due to improper handling of array brackets.