Issue #2557813 by RaF7: Use drupal_exit(); instead of exit;
Fix whitespace in tests.
The "nodequeue_tab_display_max" variable isn't used any longer.
Add tests for 7.x-2.x.
Check if Rules module exists before calling rules_invoke_event().
Issue #952448 by tanc, mikl, sambonner, Alex Bukach, pirog, jcmarco, gnindl, kasperg, jpstrikesback: Add rules events support
Issue #2544478 by Pravin Ajaaz: nodequeue_view_nodes is throwing notices
Issue #1896418 by fgm: Nodequeue should include a standard nodequeue.api.php file to documents its hooks
Issue #1978764 by esbenvb, othermachines: hook_nodequeue_delete should provide an object, not a qid as parameter
Issue #1982694 by jdillick: nodequeue_queue_back() incorrectly reassigns positions
Issue #2386261 by Dane Powell, Angry Dan: Notice use_parents is not defined
Issue #2415083 by charginghawk: Biasing values not stored with Solr
Issue #2551251 by acbramley: Allow classes to be added to subqueue form table
Issue #2512892 by DamienMcKenna: PHP 5.4 E_STRICT warning - declaration compatibility
Issue #2483507 by stovak, fizk: Old-style php4 constructor throws deprecation notice on php7
Issue #2468705 by rooby: Contextual link to edit queue disappears
Issue #2535548 by cherebedov.s: Not translated messages
Issue #2392591: Make the "Queue size" form element required to avoid database errors if the form is submitted when no value has been entered for Queue size.
Issue #1733846 by jweowu: MySQL-specific SQL
Issue #2334847 by justafish: Load nodes more efficiently
Issue #2007070 by sgorobet: Use COALESCE instead of IFNULL, and avoid using the field alias to support MS SQL Server.
Issue #2247241 by nagy.balint, travelertt: strict warning with php 5.5 on views pre render function
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