v0.1.3

Added

• {Date,Time,DateTime}::with_offset methods have been added.

• LocalResult now implements a common set of traits.

• LocalResult::and_* methods have been added.
  They are useful for safely chaining LocalResult<Date<Off>> methods to make LocalResult<DateTime<Off>>.

Changed

• Offset::name now returns SendStr.

• {Date,Time} - Duration overloadings are now allowed.