Updates for release

NEWS

+4.15.8
+======
+- Add xfce_has_gtk_frame_extents to better handle CSD
+- Translation Updates:
+  Catalan, French, German, Italian, Japanese, Portuguese, Serbian,
+  Spanish, Swedish, Turkish
+
 4.15.7
 ======
 - libxfce4ui now needs libxfce4util >= 4.15.6

configure.ac.in

@@ -9,10 +9,10 @@ m4_define([libxfce4ui_verinfo], [0:0:0])
 m4_define([libxfce4ui_version_api], [2])
 m4_define([libxfce4ui_version_major], [4])
 m4_define([libxfce4ui_version_minor], [15])
-m4_define([libxfce4ui_version_micro], [7])
+m4_define([libxfce4ui_version_micro], [8])
 m4_define([libxfce4ui_version_nano], []) dnl leave this empty to have no nano version
 m4_define([libxfce4ui_version_build], [@REVISION@])
-m4_define([libxfce4ui_version_tag], [git])
+m4_define([libxfce4ui_version_tag], [])
 m4_define([libxfce4ui_version], [libxfce4ui_version_major().libxfce4ui_version_minor().libxfce4ui_version_micro()ifelse(libxfce4ui_version_nano(), [], [], [.libxfce4ui_version_nano()])ifelse(libxfce4ui_version_tag(), [git], [libxfce4ui_version_tag()-libxfce4ui_version_build()], [libxfce4ui_version_tag()])])
 
 m4_define([libxfce4kbd_private_verinfo], [0:0:0])