psync: Update to the latest version in git

Change-Id: I97024b94a8ae9e989009e71fb8baeee9c4bd5b1e
diff --git a/libpsync/debian/rules b/libpsync/debian/rules
index 4006ae8..9d9a9e4 100755
--- a/libpsync/debian/rules
+++ b/libpsync/debian/rules
@@ -30,6 +30,8 @@
 	rm -rf .waf-1*
 	rm -f .waf-tools/*.pyc
 	rm -f docs/*.pyc
+	rm -rf .waf-tools/__pycache__
+	rm -rf docs/__pycache__
 
 override_dh_auto_test: