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-3275: Decrease version of Hibernate from 4.x (delivered to WildFly) to 3.6.10 (newer than used before, but still 3.x as otherwise Spring won't work with it).