New pro charts features and timeseries api (#1865)

* Integrate modified nvd3 library with zoom and multicharts working support

* Fix count in RRD driver

* Initial chart ajax migration

* Update nvd3 with zoom stack support

* Fix RRD listSeries with directories

* Work in progress graphs

* Compatibility fix

* Initial support for schema based api

* Add missing script

* Fix listSeries for existance check

* Implement topk timseries api

* Implement topk queries and fix labels and formats

* Migrate interface top sender and receivers

* Migrate charts to new API

* Move timeseries list for menu inside respective scripts

* Add support for extended labels

* Fix missing fields while chaning graph resolution

Also Rename drawRRD in drawGraphs

* Fix historical tabs

* Add missing time fence in influx topk

* Add graphs support for custom statistics visualization

* Initial support for graphs statistics footer

* Implement statistics in single graphs for RRD driver

* Move sampling function into the driver and fix graph statistics

* Fix max/min value offset

* Implement influxdb sampling use built-in FILL

* Implement stats and total serie in influxdb driver

* Update nvd3 with multiChart fixes

* Update nvd3 with new multiChart fixes

* RRD driver fixes

* Move metrics type from single metric to schema

* Handle ajax errors and empty data in charts

* Fix flow device interfaces graphs

* Use timeserie label as timeseries dropdown text

* Implement topk aggregation into one data serie

* ts_utils module now provides all the schemas

* Migrate ntop.exist(rrd) to ts_utils.exist

* Fix timeseries dropdown label

* L4 protos fixes for charts

* Migrate getProtoVolume to new API

* Integrate nvd3 fix for tooltip position

* Initial community graphs migration to timseries API

* Fix community timeseries dropdown and historical tabs

* Hide total serie by default

* Remove l4 protos from topk charts

scripts/lua/modules/delete_data_utils.lua

@@ -17,6 +17,7 @@ function delete_data_utils.status_to_i18n(err)
    return map[err] or 'delete_data.msg_err_unknown'
 end
 
+-- TODO: move to timeseries API
 local function delete_host_fs_data(interface_id, host_info)
    local status = "OK"