Update e2e scripts to use the -template parameter.

Add a script for the update demo.

hack/e2e-test.sh

@@ -26,14 +26,6 @@ ALREADY_UP=${1:-0}
 LEAVE_UP=${2:-0}
 TEAR_DOWN=${3:-0}
 
-HAVE_JQ=$(which jq)
-if [[ -z ${HAVE_JQ} ]]; then
-  echo "Please install jq, e.g.: 'sudo apt-get install jq' or, "
-  echo "'sudo yum install jq' or, "
-  echo "if you're on a mac with homebrew, 'brew install jq'."
-  exit 1
-fi
-
 # Exit on error
 set -e