Use an opt-out flow for comments in video, springify notifications and
notifications handlers

Transfer metadata by copy / upload / download of zip files, unify copy
of streams, copy metadata during copy of courses, remove backwards
compatibility mode for import

Move the functions of OlatRootFile and OlatRootFolder to the Local
implementations to simplify the use of VFS, implements factory methods
in VFSManager, reduce the number of call to meta informations in folder
listing

Fix deletion of metadata, fix left files by restore of versioned files,
implement restore of metadata of deleted versioned files, implements an
upgrader to delete metadata of deleted resources, courses, groups,
forums, users and temporary uploaded files

Rearrange the different settings in the same place with a segment view
for all resources. Implement a new flag for resources "bookable" which
indicates the entries with a booking methods. Guests users doesn't have
a right to view courses with booking methods.

status, all users, guests flags

to curriculum coaches and participants and assessment tool

organization, implement segment view for user visit card to better
inline in user management, implements several features for all roles
(allow enrollment, mandatory confirmation email by enrollment, allow
autocomplete, bulk changes...), add roles like lecture manager, quality
manager..., enhance the roles editor in user management

OO-3477: really remove initial author from repository entry, update course log with the new policy of user properties, springify export manager and co., make logging object annotation based

OO-3296: implement migration tool from institution resource manager to learn resource manager based on organizations

OO-3297: refactor the user management to use organization for managing the roles instead of named security groups

OO-2975: delete imported calendar after course, group and user deletion, implement a check every 10 runs to remove deprecated imported calendar, append the job to the scheduler

OO-2510: send publish after publishing is finished, speed up batch update of check lists and efficency statements...

OO-2491: apply patch to always show coach comments (S. Clemenz), fix missing title of the course elements and their headers, fix missing legends, remove the old CSV and only use the OpenXML variant

OO-2464: send publish after publishing is finished, speed up batch update of check lists and efficency statements...

OO-2172: refactor the spring configuration to be more Spring 4 friendly, remove the cycle generate by the properties injection, deployment of course and user in a separate module

OO-1873: preload the last 100 courses on start to fill the cache, preload the course before entering an assessment mode

OO-1616: fix the certificate unit test in the REST API suite, don't doInSync during import of the course, remove get resource method (duplicate), remove unused constructor and method

OO-1768: make a complete create course method which don't use and don't need to lock on the database for a new course

OO-1733: clean up all possible references, the check to prevent deletion must happen before reaching the delete method of the service