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-1068: fix radio elements in search, split select box flexi-item from radio elements, simplify the auto sorting panel for portlet, fix import for CP

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

--HG--
branch : i18n_OO

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

--HG--
branch : bps