LDEV-881: Another attempt to get rid of the java.lang.ArrayIndexOutOfBoundsException: 1 warning. This change should avoid many warnings coming out of Tomcat - not what we really wanted but we need to get rid of the "java.lang.ArrayIndexOutOfBoundsException: 1" warning as it really clutters the logs.
LDEV-1261 remove import spreadsheet actions from customised hibernate filter - need to enumerate each url in lams_admin that requires the filter from now on
LDEV-1257: Tweaking the collection tests when copying the groups - need to check that they aren't null as Hibernate may not have created empty groups yet.
LDEV-1257: Added support for Groups to be created in authoring (so that the names can be entered) and the mapping table to map groups to a sequence activity (ala branch) for a Group based branching activity.
LDEV-1134: Dummying up a branching page for the progress engine. Had missed the entry for the abstract branching class in the Hibernate file when I switched from 1 branching class to 3.
LDEV-1255: Moving the code for stopping jsps caching to a new custom tag, so that it can be applied consistently across all pages. Moved the utf-8 statements to the same tag so we don't have to remember to put them in all pages.
LDEV-1134: Changed strategy to suit how we now expect a sequence activity to look - a whole pile of subactivities joined with transitions rather than order ids.
