advanced_plot fails if MeterGaugeRenderer is used

[Wheart]

pointLabels conflicts (?) with MeterGauge - it doesn't contain "_xaxis" and throws an exception:
"this[ax]._ticks[0] is undefined"
around line 283 in jqplot.pointLabels.js
Simply commenting out js from list in settings.py "repairs" MeterGauge, but probably break some other renderers.

[ghost]

Confirm that, as a workaround you can disable pointLabels in a one specific tile (in your case MeterGauge so that there will be no need to disabling pointLabels in whole app by commenting pointLabels in settings.py).

The 'fixing' part is:

    "series":[{
        "pointLabels":{
            "show": false
        }
   }],

from checked and working example:

curl "http://localhost:7272/api/v0.1/xxx/push" \
    -X POST \
    -d "tile=advanced_plot"\
    -d "key=adv_id1"\
    -d 'data={"title": "Metric Tons per Year", "description": "",
            "plotData": [[1]]}'


curl "http://localhost:7272/api/v0.1/xxx/tileconfig/adv_id1" \
    -X POST\
    -d 'value={
            "title": "Network Speed",
            "series":[{
                "pointLabels":{
                    "show": false
                }
            }],
            "axesDefaults": {
                "show": false
            },
            "seriesDefaults": {
                "renderer": "MeterGaugeRenderer",
                "rendererOptions": {
                    "label": "MB/s"
                }
            }
        }'