Fix array value delimiting in table, improve nginx config, fix indenting

Clarify error message.

Elasticsearch will throw a 404 if there is no indexes added yet, resulting in
this unclear message -- even for people that are not using any sort of proxy.

This message update should make it easier to quickly troubleshoot why the
the dialogue is popping up.

Moved dash controller to navbar. Settings for it to dashboard settings.

Templated and scriptable dashboard options

Made logstash.js look more like logstash.json. Added info notice for lack of failover and time filter

Removed extra ">" in tooltip

Switched settings panels to use tip directive

Tooltip series identifier

Added a checkbox to the tooltip's settings that will cause the query to be displayed in the case an alias is not set.

added tip directive for defining question mark tooltips

Tooltip stacked values separation option

added a tooltip settings section to the histogram settings editor. Currently the only setting defines which value is displayed on stacked charts.

Duplicate alerts should not stack up