Prepare for 0.5.4 release

NEWS

+xfburn 0.5.4 (2015-05-16)
+============-------------
+
+- Some autoconf modernization
+- Use gstreamer 1.0 api
+- Restore broken icons
+
 xfburn 0.5.2 (2014-04-09)
 ============-------------
 

README

@@ -2,7 +2,7 @@
 xfburn
 ------
 
-Version 0.5.2, 2014-04-09
+Version 0.5.4, 2015-05-16
 
 http://www.xfce.org/projects/xfburn/
 

configure.ac.in

@@ -3,7 +3,7 @@ dnl $Id$
 dnl Version information
 m4_define([xfburn_version_major], [0])
 m4_define([xfburn_version_minor], [5])
-m4_define([xfburn_version_micro], [3])
+m4_define([xfburn_version_micro], [4])
 m4_define([xfburn_version_build], [@REVISION@])
 m4_define([xfburn_version_tag], [])
 m4_define([xfburn_version], [xfburn_version_major().xfburn_version_minor().xfburn_version_micro()ifelse(xfburn_version_tag(), [git], [xfburn_version_tag()-xfburn_version_build()], [xfburn_version_tag()])])