add conversion scripts for Sakai 10 for Lessons.
hsqldb (half-baked because I don't think they can be used), mysql and oracle
There are two files of interest:
They will go from the version of lessons released with 2.9.0 and 2.9.3, respectively, to trunk, which is Sakai 10. For 2.9.1 and 2.9.2, I recommend using 2.9.0. It is possible that one or two changes may already been in 2.9.2, so you might get an error message.