WRLC-32: Implement a generic Islandora explore block in islandora solr search module.
Improved explorer module check to alter form, added check for updating weights when there are no elements in the array, and added Solr luke link to facet filter description.
Added t() to form_set_error messages.
More code review fixes, added missing t(), and changed how the facet fail was checked.
Merge pull request #195 from matthewperry/7.x-WRLC-32

WRLC-32: Implement a generic Islandora explore block in islandora solr...