apachesolr 5.x-2.0-rc2

This release contains several important bug fixes - in particular without the follow-up patch at #630798: Implement cache_apachesolr table, sites may experience significant performance issues due to an extra metadata request being made for every MLT or search request.

Also, the Drupal 7 language-neutral code was change from 'zxx' to 'und', and this module changed to follow suit - if you are using the language facet block with language-neutral content, you may want to reindex to get consistent codes in your index.

Changelog entries:

• #672882: Broken "Show more" link on taxonomy facets
• #672530: Change array key names from display callback to display_callback and indexing callback to indexing_callback
• #551582: Show value instead of key in CCK facets
• #664818: Wrong watchdog() usage
• #667650: Results of apachesolr_process_response should return absolute URLs
• #667124: Use current query not altered query for the breadcrumb
• #667110: Replace bogus use of pager_query()
• #666648: Make hook_apachesolr_update_index() more generic by taking a namespace param also
• #662232: Use language-neutral code like D7
• #665186: README.txt should not mention solr nightly builds anymore
• #664572: Add schema and core name to admin screen
• #528086: html entities are not properly handled on search/display
• #662232: Use language-neutral code like D7
• #401234: Reflect hierarchical taxonomy vocabulary in facet
• #650534: "Column 'changed' cannot be null query" watchdog error when attempting 'Re-index all content' when using MySQL InnoDB
• #655006: PHP notices around constants
• #641452: Prevent trying to delete, or reindex, when in read-only mode.
• #638572: Taxonomy facet sorting broken.
• #628080: Update PHP client and fix multiple method name to match r22 client
• #630798: Implement cache_apachesolr table
• #623046: Make the $results array that comes back from a search more useful.
• #679522: Add gettableFiles to admin intefrace
• #672518: Add new trie prefixes to helper function