OLAT-2434 Merging HEAD to CF branch, adding database migration script. There are some classes I had to patch in the core to make this branch work, I will commit them directly to HEAD when merging the branch back to HEAD, so this branch will not compile out of the box.
jive messenger modified database script for the mysql database. It includes the necessary config options and generates the olat test users by filling the property values in the build.properties files and a full config deploy all
added instant_messaging_database.sql.in and added to 3 files