Allow display of zero values

[stefl]

I have a series of stats data that I want to graph over time. If I use JSON like this

[{"period":"2010-12-27","screenings":0},
 {"period":"2011-01-03","screenings":10},
 {"period":"2011-01-10","screenings":0}]

I get a horizontal line rather than a line that goes from zero to ten and then back down to zero. In the text display I get "n/a" as the values for these zero points.

If I change the zero values to 0.0001 the graph draws as expected.

Perhaps a setting for "ignore zeros"?

[tankist]

https://github.com/oesmith/morris.js/pull/60

[oesmith]

Thanks guys - have fixed in aa67b1a and released 0.2.9.