Fix Asterix Installer Test Cases

Many tests started to fail in installer after being
disabled for a long time. This change fixes the following:
1. asterix-installer: external library tests.
2. asterix-installer: recovery: query-after-restart.

Change-Id: Iefad5ac3ff754693025312f1e2fa01b08832514c
Reviewed-on: https://asterix-gerrit.ics.uci.edu/737
Reviewed-by: Ian Maxon <imaxon@apache.org>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
diff --git a/.gitignore b/.gitignore
index d802def..1b129d6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,6 +18,7 @@
 asterix-app/runtime_parserts/
 asterix-installer/ittest/
 asterix-installer/repliationtest/
+asterix-installer/src/test/resources/clusterts/asterix-installer-0.8.9-SNAPSHOT-binary-assembly/
 build
 asterix_logs
 bin/