[#267] Fixes issue where incorrectly formated dates broke the indexing
[#267] Add dateutils requirement
[#267] Stop new error related to organisation
[#267] change dependency
[#267] Add small test
Merge branch '267-date-indexing-fix'
[#604] Add facets to bulk process
Merge branch '604-bulk-facets'
Merge branch 'master' into 613-bulk-update-sorting

Conflicts:
	ckan/templates/organization/bulk_process.html

    - facet fixes