expose SOLR range facets in search results
properly parse range facet url parameters into the filter query
Merge branch 'canada-v2.0' of github.com:open-data/ckan into canada-v2.0

Conflicts:
	ckan/controllers/package.py
improper conflict resolution
Merge pull request #29 from deniszgonjanin/canada-v2.0

expose solr range facets in a basic way
 #700 add muliprocessing reindex
#700 fix so all processes join
rebuild_fast in package id order