apachesolr_attachments 6.x-2.0-alpha3

#1162608 by rdebieux, jpmckinney: Remove file from index if node unpublished.
#1162492 by jpmckinney: Add helpful message in admin for Windows users.
#1100306 by jpmckinney: Allow searching by filename.
#1064976 by jpmckinney: Respect hook_apachesolr_node_exclude.
#1065290 by jpmckinney: Fix $documents is undefined.
#1059768 by jpmckinney: Make error message more helpful.
#1059756 by jpmckinney: Missing drupal_set_message.
#1059744 by jpmckinney: Some variables not deleted in hook_uninstall.
#1059734 by jpmckinney: "attachements" typo.'
#1059374 by jpmckinney: apachesolr_attachment_tika_path should be apachesolr_attachments_tika_path.
#907504 by DomoSapiens: apachesolr_attachments_apachesolr_process_results creates invalid html.
#635480 by jpmckinney, pwolanin, Agileware: Unable to use hook_apachesolr_update_index with apache solr attachments.
#884606 by robertDouglass: Integrate apachesolr_attachments with apachesolr_multilingual
#936466 by aaron1234nz, halstead: Body field can be NULL on initial insert.
#936464 by aaron1234nz, halstead: Watchdog has a limit of 16 characters in the type field.