/**
\page History
\section history History
<pre>
  2004-11-07 Vesa Oikonen

  2005-01-20 Calle Laakkonen

  2005-04-26 Jarkko Johansson
  Functions libtpccurveio_print_readme(), libtpccurveio_print_history(),
  libtpccurveio_print_dreadme() and libtpccurveio_print_dhistory()
  are used for getting the Readme and History messages for the libtpccurveio,
  with and without Doxygen style tags. Remember to update the
  functions to get correct Readme and History messages!

  Function libtpccurveio_print_build(), is used for getting the build
  information.

  Merged with libcpt.

  2005-06-17 Kaisa Sederholm
  New version of dft.c.

  2005-10-30 Vesa Oikonen
  New version of mathfunc.c, result.c, and dft.c.

  2005-11-30 Vesa Oikonen
  Added support to Imanet London TAC files (idwc.c and if.c).

  2005-12-05 KS
  Added warning if the function dftWrite is writing the file 
  with a name that allready exists.

  2006-01-31 VO
  New version of mathfunc.c.

  2006-05-15 VO
  New version of dft.c.

  2006-06-03 VO
  Added support for Hill function with background (mathfunc.c).
  Added fields in result data structure (result.h and result.c).
  Field names in result data structure are case-insensitive.
  Field names in fit data structure are case-insensitive.

  2006-07-12 VO
  New version of result.c.
  New functions in dft.c, dft.h changed accordingly.

  2006-07-31 VO
  New version of result.c, result.h changed accordingly.

  2006-12-01 VO
  Corrected a bug: existing backup files were not overwritten.

  2007-01-15 VO
  New functions in dft.c and result.c.  Additions in dft.h and result.h, accordingly.
  Corrected a bug: existing result backup files were not overwritten.

  2007-01-26 VO
  Corrected a bug with XHTML tables of plain DFT data.

  2007-02-10 VO
  New functions for processing calibration and time units.
  Programs that work with time unit MUST be updated to use
  DFTTIME_MIN, DFTTIME_SEC or DFTTIME_UNKNOWN.

  2007-04-13 VO
  New function for adding extra information in comments.

  2007-04-20 VO
  Corrected bugs in reading and writing fit files.
  Added support for Hill function which does not start from 1.0.

  2007-04-24 VO
  Corrected bug: crashed when writing DFT file was not successful.

  2007-08-12 VO
  Change in DFT writing defaults.
  New functions for setting up results based on DFT data.
  Change in function that corrects DFT frame overlapping.
  Backup file extension can be changed by defining BACKUP_EXTENSION
  before including any TPC libraries; remember to include the '.'.


</pre> 
 */
