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

OO-990: refactor import of resources in REST API to match the new import mechanism in authoring environment

OO-990,OO-1068: allow import of resources which match several types ( as QTI 2.1 package), bootstrapify Onyx run controller

OO-990: rework importation of course node with references, implement autowiring capabilities in controllers

OO-984: add media mapper for description, objectives, credits, requirements, refactor long to int conversion in quota, remove some used parameters for the rich text element

OO-43: set quota for blog/podcast and CP editor (standard file upload and upload via the HTML editor)

--HG--
branch : bps