provision 6.x-1.9

See SA-CONTRIB-2012-080 - Hostmaster (Aegir) - Access Bypass and Cross Site Scripting (XSS) for details.

Changes since 6.x-1.8:

• change version information for release 1.9
• Fix for compatibility with Nginx 1.3.0 or newer.
• #1555398 - ensure the master server in a Pack is given a MySQL GRANT, if it was not also @server_master
• Add more verbosity to the notorious 'failed to fail' error, pointing to an item in the FAQ.
• #1573004 by cafuego - provision-migrate fails with 'Dummy connection failed to fail: mysql: option -e' requires an argument on Debian Wheezy
• #1573182 - Verifying a platform should abort if it can't be bootstrapped
• #1552228 by omega8cc - Nginx configuration for limit_conn should be compatible with version >= 1.1.8
• #1454316 by Steven Jones: Fixed Provision recurses infinitely on reading in context.
• #1454316 by Steven Jones: Fixed Provision recurses infinitely on reading in context.
• #1504120 by Steven Jones: Fixed Script user of remote servers is ignored.
• #1205956 by helmo - Document the Provision API
• Only errors 500 and 503 are supported in fastcgi_cache_use_stale (Nginx).
• #1544144 by thsutton - Use $server_name instead of $host in all sites/ paths to avoid broken URLs to static files for domain aliases in D7 (Nginx).
• Do not cache http auth requests. Use compact microcaching config (Nginx).
• Use separate cache for spiders/bots (Nginx).
• #1528996 by omega8cc - Nginx microcaching should use fastcgi_cache_valid with 5s only for 403 error.
• Revert "change version information for release 1.8"