Sphinx doesn't support numerical ordering ot numeric Json attributes.
(http://sphinxsearch.com/bugs/view.php?id=1471)
Added special behavior on metadata fields to support it.
#SUP-1249 #time 4h
1. Avoid quering for the metadata profile twice (once for the name,
second.
2. Change the alias to be sequencial.
#time 5m
Merge pull request #628 from kaltura/IX-9.7.0-sphinx-order

Ix 9.7.0 sphinx order