InfluxDB Filters: added function to generate filter list.
InfluxDB Filters: added filter to queries.
Merge branch 'feature/influxdb-filters' of github.com:mavimo/grafana into mavimo-feature/influxdb-filters
Fixing PR for influxdb filters
Merge branch 'master' into mavimo-feature/influxdb-filters
Improvement to InfluxDB query editor and function/value column selection, more space efficient, Closes #473