[gxml] Update LT version to 14.3.0

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 6322da01da02a81e5a9c19106714a412332a55ac
Author: Daniel Espinosa <esodan gmail com>
Date:   Sat Apr 8 09:31:10 2017 -0500

    Update LT version to 14.3.0

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 0495705..94806d9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,7 @@ m4_define([project_nano_version], [0])
 #   If public symbols have been added since last release, increment age
 #   If public symbols have been removed since last release, set age to 0
 m4_define([project_lt_current], [14])
-m4_define([project_lt_revision], [0])
+m4_define([project_lt_revision], [3])
 m4_define([project_lt_age], [0])
 
 # Combine numbers to various version variables (different uses)