OO-981: check if the catalog is enable in details of course, add a "feature enabled" for site configuration

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-1068 add classname prefix for html editor styles to fix naming chaos. first step, more to follow...