* Add alias and device type columns to host pools
* Add host pool members links when available
* Add host pool links
* Implement host pool members pagination
* Host Pools GUI fixes and improvements
* Remove hardcoded columns number
* Host Pools GUI fixes
* Remove debug print
This commits adds two reset buttons to the interface page.
One button allows the reset of all interface counters, namely,
packets and bytes received, packets dropped, and the number of
flows exported and dropped (when mysql or elasticsearch is enabled).
The other button allows the reset of only the drops.
Fixed bug in footer.lua that caused a JS error that prevented the page from being updated
Moved utility functions from footer lua script to ntopng_utils.js
Uses ajax to handle (possibly) long queries on historical data
with the aim of improving user experience.
The user is notified when a query is taking too long so that
he/she can get feedback of what is going on.
