Add jsonpath to license file
Apply changes for alpha release of presidio.

Base dashboard on logstash, but remove the histogram.
Add error handling for 503 on doSearch() and kbnIndex.resolve_indices().
Add total # of hits to the table panel.
Include short-circuit of empty query -- resets panel fields.
Re-apply local changes (e.g. @timestamp -> timestamp, change elasticsearch url in config.js)
set placeholder text