project 4.7.x-2.4

Changes since version 4.7.x-2.3:

• #170135 by dww and hunmonk: Fixed a bug in project_db_rewrite_sql() that caused it to restrict access to nodes it should have allowed.
• #75745 by dww and hunmonk: Fixed bug in the query that generates the project overview pages when using the project taxonomy. We need to restrict to top-level terms so that if any 2nd-level terms happen to have the same name, there's no collision and non-deterministic behavior.
• #189843 by dww: Removed some really old, weird, dead code.
• #170000 by hunmonk: make project overview query postgres compliant.
• #170350 by hunmonk: drupal_not_found() for bogus project aliases.
• #162456 by hunmonk: Browse by category should set page title properly.
• #168520 by aclight: Set title attribute on Category links on browse by category overview page with term descriptions.
• #196247 by hunmonk: Project registers the same menu path multiple times. also fixes bug where incorrect values were getting saved for the sort options, and a bug where the default sorting tabs wouldn't appear until the project settings page was saved.
• Cleaned up and commented a confusing menu item.
• Removed some stray whitespace from the code.