Make managix scripts properly executable

Most of the scripts managix was using were missing the shebang at the beginning of the script.
This can be problematic if one uses a shell besides bash. This patch fixes that.

Change-Id: Ie7722f832d0d25bec049e123a0ed1570d0aeb650
Reviewed-on: https://asterix-gerrit.ics.uci.edu/286
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Raman Grover <ramangrover29@gmail.com>
diff --git a/asterix-events/src/main/resources/events/file/create_file.sh b/asterix-events/src/main/resources/events/file/create_file.sh
index 762a2d3..dbec6b4 100644
--- a/asterix-events/src/main/resources/events/file/create_file.sh
+++ b/asterix-events/src/main/resources/events/file/create_file.sh
@@ -1,3 +1,5 @@
+#!/usr/bin/env bash
+
 mkdir -p $1
 echo "touch $1/$2" >> ~/file_create.log
 touch $1/$2