pablojim/highcharts-ng — pull request #145 by barendb (2014-06-21 02:12:05+00:00)
Title: fix: allowing chart to use drilldown data from highcharts-ng config

The mergedOptions did not contain the drilldown data, just added the same logic to ensure drilldown data is copied from the supplied config.

Fiddle to test
http://jsfiddle.net/Cp73s/483/