04.05.2009: (1.2.3)
	- option "--records" daws the freqencies now
	- fixed minor bug in countlinks()
	- added new script "wordtable.pl" to count frequencies separately
14.08.2003: (1.2.2)
	- removed superfluidous option --draw-different-links
	- added option --concentrate which clusters strong depended nodes
	- prepared option --records to have nodes with much more detailled information
	- fixed option --casesensitive
	- fixed bug by write to file via --outfile
	- refinements in POD
22.07.2003: (1.2.1)
	- eliminating survived global vars
	- correcting possible precedence irritations
	- filterfile-option does work again
20.07.2003:
	- cleaning up documentation and code
	- changing version to 1.2
19.07.2003:
	- initial rewrite to use GraphViz-module
10.07.2003:
	- rewrite some things to have a cleaner, structured code
	- reorganisizing filters
09.07.2003:
	- bugfix in filterword elimination (wrong array copy)
	- beautifying code
	- changed "frequency" filter to "count" filter, because it is a better description what the filter does
	- added real "frequency" filter
	- "frequency" and "count" filter depends on word frequency now
	- zeroword-option added, means all stuff eliminated in filters were substituted by a placeholder, see description in --help
08.08.2001:
    - changing version to v0.2
    - faster execution through usage of tr/// instead s///,
      study, and a smarter split//
08.08.2001:
    - li'l documentation added
07.08.2001:
    - first release of txt2graph v0.1
29.09.2001:
    - added POD-Manual
    - added new Option "--print-manual" to read POD-Manual
11.08.2001:
    - complete rewrite to include additional new features,
      see "txt2graph --help"
    - changing version to v1.0, because it is a complex new thing