FXOLAT-358: move the special background task manager for the RepositoryManager in the package org.olat.repository
strip "uzh" from olat.local.properties replaced with "opol" (thought "oo" was too short and too generic)
FXOLAT-361: fix an issue in resolve patch from Uni. wich returned the LocalFile with the wrong parentContainer
FXOLAT-358: remove more unused classes and packages (SpringController, recorder i18n package, unused layouter)
FXOLAT-358: remove com.xyz extension (not entirely working, 2 links generate red screen, not standard package structure)
FXOLAT-282: disable the validation for read-only meeting, vitero logo in title of course bb, set the locale of the user, wording
