Merge pull request #444 from rashidkpc/urllink

Added clickable urls to table row details view
Added a check, when rendering the delete button, to see if there are pinned
queries, rather than just checking for other unpinned queries.
Make alerts unique, wip
Merge pull request #445 from spenceralger/delete-last-unpinned-query

Allow users to delete the last unpinned query as long as there are pinned queries
Check if alert exists already. Closes #442
Merge pull request #447 from rashidkpc/singleAlerts

Duplicate alerts should not stack up
added a tooltip settings section to the histogram settings editor. Currently the only setting defines which value is displayed on stacked charts.
Merge remote-tracking branch 'spencer/tooltip-settings' into tooltip
Add question mark icon for tooltip