hierarchical_select 6.x-3.7

Changes since DRUPAL-6--3-6:

• Fixed #964750: PHP 5.3 compatibility
• Fixed #920588: HS cache table is not cleaning
• #613428 by smartinm: Allow HS to be used in Taxonomy: Term ID (with depth) filter
• #1023508 by davidwhthomas and wimleers: Allow passing node type to restrict entity count
• Fixed #939070 by Virr: Sort criteria Term ID disappears after installing Taxonomy Views
• Fixed #1007492 by smartinm: Don't always perform a callback to the server when updating
• Fixed #815796 by tacituseu: HS Taxonomy loses selection upon node preview (patch copied from core)
• Fixed #931902 by Dave Reid and Wim Leers: Update Token integration to support recent versions of Token
• Fixed #910798 by tacituseu: PHP error when editing a vocabulary
• Improved the JS events documentation.
• Improved the documentation about the implications of using Taxonomy with multiple parents functionality and all that implies for Hierarchical Select's "save lineage" setting.
• #1007502 by smartinm: Integration with Features module
• Fixed #697172 with significant help of swentel: "Invalid Response from Server", possible causes and solution
• #676990: Document usage of Small Hierarchy module properly
• Fix typo that causes a logic error. Found this one while working on the D7 port that's sponsored by PingV.