using floating point values in XML for in and out will fail in forthcoming MLT version

Currently, OpenShot is using floating point values in frame units for in and out properties, but in the near future that will be interpreted as seconds.
Forthcoming version 0.8.0 of MLT (Q1 2012) will add support for time values, and the last field of time will be interpreted either as frames if there is no decimal or seconds if there is: HH:MM:SS;FF or HH:MM:SS.ms. The 'HH:' and 'MM:' will be optional so a bare number value will still be frames if integer or seconds if float.
Here is a note on MLT wiki about this and related: http://www.mltframework.org/twiki/bin/view/MLT/RfcMltProperties1