Adding upstream version 1.6~pre4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

doc/lzlib.info

@@ -11,7 +11,7 @@ File: lzlib.info,  Node: Top,  Next: Introduction,  Up: (dir)
 Lzlib Manual
 ************
 
-This manual is for Lzlib (version 1.6-pre3, 30 March 2014).
+This manual is for Lzlib (version 1.6-pre4, 25 April 2014).
 
 * Menu:
 

doc/lzlib.texi

@@ -6,8 +6,8 @@
 @finalout
 @c %**end of header
 
-@set UPDATED 30 March 2014
-@set VERSION 1.6-pre3
+@set UPDATED 25 April 2014
+@set VERSION 1.6-pre4
 
 @dircategory Data Compression
 @direntry

doc/minilzip.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.37.1.
-.TH MINILZIP "1" "March 2014" "minilzip 1.6-pre3" "User Commands"
+.TH MINILZIP "1" "April 2014" "minilzip 1.6-pre4" "User Commands"
 .SH NAME
 minilzip \- reduces the size of files
 .SH SYNOPSIS
@@ -83,7 +83,7 @@ Report bugs to lzip\-bug@nongnu.org
 Lzlib home page: http://www.nongnu.org/lzip/lzlib.html
 .SH COPYRIGHT
 Copyright \(co 2014 Antonio Diaz Diaz.
-Using lzlib 1.6\-pre3
+Using lzlib 1.6\-pre4
 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
 .br
 This is free software: you are free to change and redistribute it.