add virt-nitb: a fully virtual network with 2 MS

Change-Id: I31cf24006ea9ceb83622aedef22046c53db90142
diff --git a/.gitignore b/.gitignore
index 61d0fcf..3b70a48 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,3 +19,11 @@
 ttcn3/make/
 ttcn3/.run.sh
 ttcn3/usr_local
+current_log
+lastlog
+autolog
+*.db
+*.db-shm
+*.db-wal
+# log file created by udtrace
+virt-nitb/osmo-msc.log