novus/nvd3 — pull request #444 by cstephe (2014-02-12 23:15:08+00:00)
Title: [428] Partial fix for 428, Updated line charts guildline mouse over eve...

...nt to use a settable custom formatter for the value field. Otherwise uses the xAxis formatter. This is only available to line chart and only for value and only is applied to guidelines for now.