2013-07-18 02:24 UTC+0200 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
  * include/hbdate.h
  * src/common/hbdate.c
    + added new C functions:
         double hb_timeLocalToUTC( double dTimeStamp );
         long hb_timeStampUTCOffset( int iYear, int iMonth, int iDay,
                                     int iHour, int iMinutes, int iSeconds );
    ; warning: some C RTLs may not correctly detect Summer time for all past
               dates in few countries.

  * include/harbour.hbx
  * src/rtl/dateshb.c
    + added new PRG function:
         hb_TSToUTC( <tsLocal> ) -> <tsUTC>
    + added support for optional timestamp parameter in hb_UTCOffset()
      function, current syntax is:
         hb_UTCOffset( [ <tsLocal> ] ) -> <nSeconds>

  * contrib/hbtip/hbtip.hbx
  * contrib/hbtip/utils.c
    + added new PRG function:
         tip_FileNameMimeType( <cFileName> ) -> <cMimeType>
      It's a wrapper to old C function s_findFileMimeType()
      TODO: replace few independent mimetype functions by single one.
    ! fixed tip_FileMimeType() to not call hb_fsClose() or any other FS
      function with wrong handler.
    ! fixed tip_TimeStamp() using hb_timeStampUTCOffset() instead of
      hb_timeUTCOffset() to correctly calculate UTC offset for dates
      different then current one.
    ! decode time passed as numeric second() value in 2-nd parameter of
      tip_TimeStamp() only when the 1-st one contains pure date value.
Merge https://github.com/harbour/core