anchor.diff:  === Template Directory Reference Specification (TDRS)
   
   A 'Template Directory Reference Specification' specifies a location where +tg+ searches for
  -'Template Containers'. The reference specification may either be:
  +'Template Containers'. The reference specification may either be
  +
   - a absolute or relative path specification like _../mymksourcetemplates_ or _/opt/etc/mymksourcetemplates_, or
   - a http-URL reference like http://tg.realtime-projects.com/templates. (Link does not work yet, sorry!).
   
  
positive.code: === User Name
  TBD
  
  === This Document's templates
  
  ==== Level3
  
  
negative.code: determined in the 'User Name' definition. At leased, +tg+ uses the environment variable
  +LOGNAME+.
  
  === Template Generation
  
  +tg+ generates for each Blueprint File in a Template Container a Template File by using
  the Replacement Rules. Existing files are skipped unless the user forces overwriting, e.g.
  by using the command line switch '-f', like +tg -f -t cpp create Main+. +tg+ prints out a
  warning for every skipped file.
  
  === Exit Code
  
  +tg+ returns 0 when it generated the templates successfully, even when it skips the
  generation due to existing template files.
  