version 0.001; 2007-02-13

  * in presentation functions, restrict range of all numerical inputs
    to what will fit into the fixed-length formats

  * add notes on standard conformance of presentation formats

  * add reference to Date::JD

  * test explicitly for correct class of result

  * small wording fixes in documentation

  * remove an unused variable

version 0.000; 2006-05-18

  * initial released version