Version 0.06 23-may-95
  1) Added Text input.
  2) Added option for piped input and output.
  3) Fixed bug in finding messages with empty lines at the start.
  4) Changed () (grouping) construct to more closely match POSIX.  
     Previously, the regular expression in the parentheses would match
     the longest string at the expense of the entire expression.
  5) Added '\s' and '\e' constructs to regular expressions (set start 
     and end of match).

Version 0.05 4-apr-95
  1) Changed regular expressions to more closely match POSIX.
     a) Added [: :] (classes).
     b) Changed [] to use bitmaps.
     c) Changed parsing of [] to match POSIX.  All characters are now
        regular characters inside []'s, except for [: :] classes.
     d) Added () (grouping) construct.
     e) Added | (or) operator.
  2) Fixed bug in parsing command line when using "-Y" (Yarn folder) 
     option.  Options may now be placed anywhere on the command line.

Version 0.04 8-mar-95     First public release.
  1) Changed search strings to regular expressions.

Version 0.02 24-feb-95
  1) Separated search strings into an initialization file.
  2) Increased maximum line size to 2024 chars.

Version 0.01 25-jul-94
  First version.  A quick program to de-digestify a specific mail list.
