Increase the timeout interval to 20s

Author: Sazon, John Bryan J

.travis.yml

@@ -24,7 +24,7 @@ before_install:
     while [ $(curl -I -u "root:123qwe123" http://localhost:10080/users/sign_in | head -1 | grep 200 | wc -l | tr -d ' ') -ne 1 ]; do
       ctr=`expr $ctr + 1`
       echo waiting for gitlab to come up
-      sleep 10
+      sleep 20
       if [ $ctr == $max_retries ]; then
         echo "max retries (${max_retries}) reached"
         exit 1