Backport compatibility with Vala 0.26

configure.ac

@@ -11,7 +11,7 @@
 
 # Release Version
 m4_define([project_major_version], [0])
-m4_define([project_minor_version], [4])
+m4_define([project_minor_version], [5])
 m4_define([project_micro_version], [0])
 m4_define([project_nano_version], [0])
 
@@ -21,7 +21,7 @@ m4_define([project_nano_version], [0])
 #     increment current and set revision to 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], [4])
+m4_define([project_lt_current], [5])
 m4_define([project_lt_revision], [0])
 m4_define([project_lt_age], [0])