Changed learning design activities and transition collections to use all-delete-orphan cascade management. This will ensure that the secondary records are created and removed as required. This required fixing code that trigger cascade problems and also highlighted some session problems with the learner cache created by Jacky.
Added a flag to the Flash crash dump, which allows Flash to give a parameter which is then inserted into the filename. Useful for dumps where the data has to be split across multiple dumps due to Flash restrictions. Working on the delete side of preview. Untested.