LDEV-3293: Use the new Spring's support for Hibernate 4 instead of Hibernate 3. Switch from using HibernateDaoSupport.getSession() to its getSessionFactory().getSession(). The latter is sure to close the session automatically while a session returned by the first method should be closed manually. Theoritecally we do it in OpenSessionInViewFilter, but it may not be always the case, leading to open Hibernate session being left behind.
LDEV-3293: Cast DAO methods' results to their return type. Java 8 is more restrictive about generics. Hibernate find() methods returns List<?> and it can not be quietly cast to List<SomeClass>. Each occurence was explicitly casted and warnings about the type being unchecked were supressed.
LDEV-2463 Added new method "learnerStrictAuth" available to LoginRequest. It works the same way as "learner" but requires hash to also contain lesson id parameter.
LDEV-3258: Set target Survery user for notification emails. Wrap Notification Service method in a new transaction so existing one can be even read-only.
LDEV-3115: Allow unifinished branches. Validation of groupings not being used in a sequence. Remove grouping references when transition is removed. Recently Used Sequences (LD access) full functionality. Detect LDs being overwritten by manually providing an existing title. Change how Parallel Activities are detected and described in Flashless Authoring in LD Importer. Multiple CSS changes and bug fixes.
LDEV-3115, LDEV-3215: Grouping for Floating activities. Improve grouping detection for plain Tool activities. Last LD access list front end partial implementation.
