qnd: KalturaEntryFactory should load plugin objects (added for external media entry support)

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/tags/falcon_2012_08_20@94239 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
qnd: merge partial code from trunk for embedIframeJsAction. partner id, uiconf id and entry id parameters should be appended to mwEmbedLoader.php

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/tags/falcon_2012_08_20@94249 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
adding empty directories