nodequeue 6.x-2.0-rc3

This will likely be the last release candidate for Node Queue 6!

Bug Fixes:
Views 2 API change compliance by ezra-g
#309914: Smartqueue_taxo may alter subqueues it doesn't own by wazdog
#317074: old dev release marked as "Up to date" reported by Pasqualle, fixed by dww
#300895: Cannot filter nodequeue views by subqueue reference by dalin
#303985: Performance Improvement: nodequeue_node_tab_access should call user_access first by ezra-g, continuing thinking by merinofchaos
#306222: Stray drupal_set_message in dev.. reported by moonshine, fixed by ezra-g
#311089: PHP notice: Undefined property: stdClass::$position reported Pasqualle, fixed by ezra-g

New Features:
#306201: Sort allowed node types by display name, not internal name by wazdog
#303608: Add "Subqueue title" option to Views arguments by wazdog
#315375: Sort queues by title in admin list by wazdog implementing feedback by ezra-g