The Studio Maintenance app had two features: * "Force Course Publish", which literally doesn't do anything. All it does is tell you what version *would* be seen by users *if* the course were to be published--no publishing actually occurs via this feature. * "Announcements", which writes to the announcements_announcement database table, but doesn't actually display anywhere. Having these pages in the platform is actively misleading and creates a maintenance burden for edx-platform developers, so we remove them. Note that this commit does not include a migration for the announcements Django app. So, announcements_announcement table will not be deleted. Given the small expected size of any past-authored announcements, we are not worried about leaving them in the database perpetually.
Open edX -------- This is the root package for Open edX. The intent is that all importable code from Open edX will eventually live here, including the code in the lms, cms, and common directories. If you're adding a new Django app, place it in core/djangoapps. If you're adding utilities that require Django, place them in core/djangolib. If you're adding code that defines no Django models or views of its own but is widely useful, put it in core/lib. Note: All new code should be created in this package, and the legacy code will be moved here gradually. For now the code is not structured like this, and hence legacy code will continue to live in a number of different packages.