Implemented viable sphinxsearch indexing for articles and feeds.
Indexing and search implemented
Indexing and search implemented
Indexing and search implemented
added code to try sphinxit
modified mongo2sphinx to use mongo's id as sphinx's id
removed sphinxit code
fixed the unused parameters issue
fixed the unused parameters issue
Makes index_on_sphinx.sh executable
Sets utf-8 charset for both collections

I was getting errors without this defined.
minor change in sphinx configuration
Merge branch 'feature/sphinxsearh_backend' of github.com:NAMD/mediacloud_backend into feature/sphinxsearh_backend
fixed some issues with mongo2sphinx
added a test for the xml serialization of the mongo documents.
More bug fixes in indexing
Catches AttributeError when 'published' is not ISODate
Fixes bug that didn't include metadata in the xml
minor changes
Merge branch 'feature/sphinxsearh_backend' of github.com:NAMD/mediacloud_backend into feature/sphinxsearh_backend

Conflicts:
	indexing/mongo2sphinx.py
made some improvements to sphinx.conf file to reduce HTML polution.