Reduce the max results from OpenTSDB suggest

The current suggest implementation defaults to returning 16,000,000 metrics by default. Apparently we have 38,000 different metrics (at least according to the output in the console)

Every time you type a character in the Metric filter, it performs another search and reloads these 38,000 metrics. Unfortunately, this kills Chrome. I'd ask you limit to 100 results for now as below or make this configurable in the future so we can limit results so the browser dies.

(loving this by the way, by far the BEST UI I've seen for OpenTSDB)

Also, I've fixed the permissions on install.sh so it's executable.