Dynamic Paths would sometimes render incorrectly.

We were storing the referenceFrame property on each interval rather than the interval.data property.  When an interval is split (because of new incoming data) the property was lost.  We need to stre the referenceFrame on the data property instead.
Merge branch 'master' into fixPaths
Merge pull request #632 from AnalyticalGraphicsInc/fixPaths

Dynamic Paths would sometimes render incorrectly.
Merge remote-tracking branch 'origin/master' into pickFixes
Merge branch 'pickFixes' into commandPassState