[ekiga] Fixed 'make distcheck'

[Julien Puydt <jpuydt src gnome org>]

commit b93d4e0282909f7ed8dea2a32ee91064aa8c27e5
Author: Snark <jpuydt gnome org>
Date:   Sat Oct 16 16:29:51 2010 +0200

    Fixed 'make distcheck'

 lib/Makefile.am |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/lib/Makefile.am b/lib/Makefile.am
index b0ed30d..864c4fd 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -267,7 +267,8 @@ libekiga_la_SOURCES += \
 	$(engine_dir)/framework/ptr_array.h \
 	$(engine_dir)/framework/ptr_array_iterator.h \
 	$(engine_dir)/framework/ptr_array_const_iterator.h \
-	$(engine_dir)/framework/live-object.h
+	$(engine_dir)/framework/live-object.h \
+	$(engine_dir)/framework/filterable.h
 
 ##
 # Sources of the plugin loader code