Adjust kube-up.sh to accept command line options.

In preparation for making other changes I thought I would propose an initial change to kube-up.sh to process command line options. Added are options for help and for specifying logging with fluentd and Elasticsearch and fluentd with GCP.
You want to pass "$@" (with quotes) not $*.  

Why?  consider: kube-up.sh "foo bar" - kube-up() will receive two args with $*, but 1 arg with "$@".