Querying server from backbone collections instead PageableCollections

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
Replacing Universe with UniversePageable likeothers views

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
Killing old models initialization code

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
Replacing Collections with Pageable and killing transform not used yet

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
Fetching media collection inside editview

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
Fix: If comes backbone.collection to searchview

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
use local pieceList instead of global.