bump back to use normalized results
better category filter handling
add popular and relevance sorting options
add type to template snippets
use h3 to avoid clash with homepage (need style)
clean map snippet
split search templates to be reusable
make layer explore page to use the search engine
bump maps explore to use search engine (minor fixes on layers too)
fix keywords and categories counts in maps/layer explore
cleanup unnecessary template and code
Merge remote-tracking branch 'simod/master' into master-search
filter map keywords directly as they inherit from ResourceBase
bump documents explore to use the search engine
Merge remote-tracking branch 'simod/master' into master-search

Conflicts:
	geonode/maps/templates/maps/map_list.html
put back the create new map button
fix map search body class name
Merge remote-tracking branch 'simod/master' into master-search
Merge pull request #791 from simod/master-search

work on search stage 2