Changes from release 0.5.2 to 0.5.3:

        * fixed problems with building for VC++ 

        * added experimental builder classes

        * sc_Subfield has a setUnvalued() member, which sets it to a
          null state; this is particularly useful for creating
          subfields that serve as empty placeholders in an sc_Field

        * all container and some io classes have "<<" ostream
          functions for dumping state to a stream; particularly use
          for diagnostics or generating reports (c.f., sio_Reader_t.cpp)

        * eliminated many superfluous checks in configure script

        * generated lexer and parser source now play nice with both
          Visual C++ and gcc and egcs without manual hacking on the
          programmer's behalf; note that these are pretty bison and
          flex specific if you want to change them

Changes from release 0.5.1 to 0.5.2:

	* removed check for -frtti flag as this was breaking builds for
          gcc 2.8.1

Changes from release 0.5 to 0.5.1:

	* added NEED_TYPEINFO macros where needed

	* insured that pre-generated lexer and parser included in distribution
	  for those environments where flex and bison aren't available

Changes from release 0.4 to 0.5:

	* works with both VC++, gcc 2.8.1, and egcs 1.0.2

	* fixed signed binary values; previously they were getting converted
	  to unsigned integers

	* fixed install script makefile variable substitutions;
	  previously invoking ``make install'' from the top level
	  directory would break because the sub-makes would try to look for
	  an install script in the current working directory

	* fixed an off array end bug found by Purify

	* added command line options to sample programs and added more output

	* IMPORTANT: changed the sio_8211Writer's interface so that the
	  schema and file title can be changed to facilitate re-use of an
	  existing writer

	* Defining the macros SDTSXX_DEBUG and DEBUG will generate
	  diagnostic output

	* Corrected and updated the programmer's manual, ``doc/MANUAL''


Changes from release 0.3 to 0.4:

        * synched up documentation for gcc/egcs support

        * fixed bug whereby subfields of spaces for numeric values
          yielded random numbers

        * fixed bug where attribute field information wasn't getting written
          properly (i.e., the field schemas wouldn't be found because we'd
          be looking at the mnemonic and not the name fields; attributes
          store these values in the name and not the mnemonic)

        * added -v switch to sio_Reader_t to toggle copious output

        * added -v switch to sio_ReadWrite_t to toggle copious output

        * compiling with SDTSXXDEBUG defined will turn on debugging
          output for the writer

        * fixed bug where writer was too stupid to figure out that
          adjacent fixed length fields that had different lengths but
          the same types were indeed different; prevously, it would
          lump, say, (A(10), A(1)) together as (2A(10))

        * although this will never occur (because no one defines their
          own delimiters) fixed bug similar to the previous one --
          adjacent variable length subfields that have the same type
          but different delimiters wouldn't be recognized as being
          different; so (A(%), A(^)) would be mistakenly written out as
          (2A(%))

        * fixed another bug where repeating fixed length fields would
          erroneously be defined as variable length subfields

Changes from release 0.2 to 0.3:

	* made sio_8211Record::setLeader() protected

	* added test drivers for 8211 Directory Entries, Fields, DDR,
	  DR, DDRLeader, and DRLeader

	* removed cout/cerr diagnostic messages

	* binary converters finished and support proper endians

Changes from release 0.1 to 0.2:

	* added ability to write SDTS datasets

	* fixed bug whereby directory entries were not cleared
	  between record reads

	* added support for other binary types, like floating point subfields

	* added more test drivers

	* added documentation

	* plugged memory leak in sio_Buffer