Makefile updated to copy libsandesha2.so to lib directory

diff --git a/src/core/Makefile.am b/src/core/Makefile.am
index 9964516..5e3ce3b 100644
--- a/src/core/Makefile.am
+++ b/src/core/Makefile.am
@@ -20,4 +20,6 @@
                         ../wsrm/libsandesha2_wsrm.la \
                         ../polling/libsandesha2_polling.la 
 
+install-data-hook:
+	cp -f $(prefix)/modules/sandesha2/libsandesha2* $(prefix)/lib/