VOL-1856: onos and apps version to match 1.7/Tech Profile

Also include seba compatable kafka app.
Also update example network-cfg.json to working bbsim example.

Change-Id: I0652d40316f7a3c450f2595d70fe5fb3e90e8cba
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e14594c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*.log
+local_imports