KNOX-433: Startup Script for Apache Knox

(cherry picked from commit 1140aee65a56c3a66849c9eae0a554f3c45f17e1)
KNOX-433: Startup Script for Apache Knox

(cherry picked from commit d02fda4b3c364b6f9dacc83e10bd3793c0b83cf4)
Merge remote-tracking branch 'origin/apache-ref/v0.5.0' into champlain