- Added 5 sysops commands :

	. PURGe/Mail [b=days] [p=days]
		b=days : for bulls
		p=days : for private mails

	. PURGe/Dx [days]

	. PURGe/Annonce [days]

	. PURGe/WWv [days]

	. PURGe/WCy [days]

  These commands are equivalent to the PURG* external ones. Please do not
  use anymore the external commands.
  [days] is always optional. By default, it is equal to 30 days.
  Notice that these commands are also supported by the windows version.

- Fixed an algo error in SH/SUN which computed bad sunrise/sunset time from
  January to July. Tks LA3WAA and OH6NJ.

- WWV was not working properly. Fixed. Tks K1XX, LA3WAA, ...

- The default telnet port (23) for outgoing connection were wrong in the
  windows version. Tks K1XX.

- K1XX reported for the windows version that some of the telnet connections
  are never close. This occurs if the connection is not properly ended
  (ie when they are due to network failure). He also reported that the CPU
  usages sometimes spikes to 100 percent. I discovered that both of these
  problems are very dependant. Fixed. Tks K1XX.

- DxNet now supports to entries like "+PC18" in script files. That
  way a connection can be established even if the distant cluster sends
  immediatly either a PC38 or a PC18 protocol after the login sequence.
  Tks PA3EZL.

- Fixed a very old and known cosmetic bug : the last line of the dxnet.cfg
  config file is now processed correctly even if it is not ended by a
  cariage return ... :-)

- Windows version : all telnet connections were lost when dxnet
  entered into idle mode (which occurs when the AGW pe is shutted down).
  Fixed.

- PA3EZL fixed a problem in remote command function which might occur when
  the enhanced PC84/85 protocols are enabled. This bug caused dxnet to
  crash under linux and might generate hazardous behaviours under
  dos/windows.

- Modified the format of DX datas (SH/DX) to get dxnet compatible with
  DXBase logging program. A couple of characters have been removed from
  the total size of the output string. Tks JA3BOA.

- Fixed both "SH/DX 18" and "SH/DX 24" problems. Tks IS0GQX and LA3WAA.