demo 6.x-1.3

Changes since DRUPAL-6--1-2:

• Fixed wrong order of changelog entries in last commits.
• #372113 by sun: Fixed not all cache tables are skipped.
• #393186 by sun: Fixed fatal error: Only variables can be passed by reference.
• #256714 by smk-ka, sun: Removed site name sub-folder from dump directory path.
• #256714 by sun: Fixed site name sub-folder no longer appended.
• #424524 by John Money, sun: Fixed site not reset on all cron runs.
• by sun: Fixed coding-style.
• #489666 by stella: Added hook invocation after successful reset.
• by smk-ka: Added admin_menu cache table to exclude list.
• #496620 by evoltech: Fixed paths in README.txt.
• #370402 by sun: Added option to download snapshot files.
• by sun: Fixed length of form button captions on snapshot management form.
• #535754 by smk-ka, sun: Added API functions/hooks to perform dumps and resets.
• #505800 by smk-ka: Fixed SQL VIEWS are causing faulty dump.
• by sun: Fixed table engine, charset, and comment not contained in snapshot.
• #375507 by sun: Added hook_uninstall().
• #294879 by sun: Splitted module into API and demo_reset module.
• #633050 by sun: Fixed false error message about missing engine support.
• #637458 by smk-ka: Fixed broken dumps whne not using PDO driver.
• by sun: Fixed file permissions of new .info and .sql files.