LDEV-2926* removed XDoclet tags from Java classes that generate them improperly and thus already possess static .hbm.xml files.* removed static .hbm.xml files in cases when they can be produced using Xdoclet information
LDEV-2782: On Index page show lesson having conditions when its finish date is set.Allow setting lesson finish date either individually for every user or for lesson as a whole.Adjust lesson conditions thickbox labels and form elements.
LDEV-2782: Rename table with lesson condtions for better reflection of its function.Add icon and thickbox on Index page, showing release conditions of given lesson.Allow removing conditions.
LDEV-2782: Add backend code for conditional release of lessons.Prevent learners from accessing unreleased lessons.Inform learners of unlocked lessons after completing preceding lessons.