Add Data option to push. 

* bump to v.1.5
* Since dev changed significantly, had to refactor #88 into this version

@kitcambridge r?
It seems to be gauge that's the worst, because it updates on a clock. I could solve the problem by simply turning off metrics entirely (using NoMetrics), but for some instances, I want to have some metric collection. ShowGauge should really be called ShowGaugeDebugStatement, because that's the noise I'm filtering out.