#321942 (primarily) - working config file generation and synch command. Also cleaned up variables passed to the system so the site_ prefix is no longer used.

#321944 - provision setup command added. this is a subset of the hosting setup command and is only visible when the hosting module is not installed. This handles configuration of filesystem and the drush.php symlink

L10n support for install profiles. Detects and installs sites using the available languages correctly. Does not currently detect the language of installed sites correctly. Will fix this along with #319299 momentarily

Ensure that including settings.php from imported sites, to get their settings, to not modify the php ini_set environment

detect properly the proper apachectl command to run on debian + apache2, FreeBSD and probably others

Fix issue with redirect failing --uri needs the http:// to work properly, it was writing the vhost file as http:///domain.com

Simplify verify code by creating _provision_create_dir function. Removed duplicate code from other modules. Need this in hosting_setup too.

Added restore functionality for #237555. Implement rollback as well, if something goes wrong it rolls back to the initial system status

More work towards restore functionality. Moved the mysql utility functions to provision_mysql.inc, and the help stuff to it's own include too.

Made more constants to replace the various helper functions, still need to document them.

Replaced all references to db_username with db_user, which is consistent with everywhere else in the system.

It is now called provision_path, and instead of the nasty switch statement it has a small set of pluggable  functions, which work similarly to theme() etc. For that reason I also ended up changing the order of the parameters to be provision_path('mkdir', 'somepath').

The functionality grew to over 200 lines of code (mostly comments), so i split it off into it's own file.

I also added checks that the user is in the correct group, and it will specify it to the user if it comes to it, but I should really hook it up into the user interface and write some better documentation about it before i can close #245664. Although it seems chgrp now fails silently for me, even from the command line. Please check it out.

I moved _provision_drupal_recursive_delete to provision.inc and removed the drupal from the module prefix. I also made it use the provision_path module for logging purposes, cleaning it up a bit.

#262008 is now completely fixed. I've re-added the permission checking in provision_drupal.module, since it now works. It was missing a clearstatcache(), so i added these pretty liberally.

Part of the fallout from this, is that each of the provision_path_ functions have an optional third parameter, which is a reference. This reference can be used to provide a reason for the operation failing. Also, mostly due to the chown function, i run the messages through t() before they get sent to logs. Meaning developers can just use @path and @confirm in their error messages, and they get the centrally prettied up variables. It's made the verify code a lot easier on the eyes. just check out provision_verify.

Added redirection to a new site maintenance page, for while the site is being restored.

Added a switch paths function, which flips around site directories. I'm building restore to be non-destructive, until after the site has been completely restored and verfied. #237555

I'm making a move to using more defines for various site infrastructure things. I just tackled the paths, will do the current user and current group stuff soon, bringing it back in line with hosting. It cleared up a fair amount of code just doing the paths.

See #259383

make a 'this site is disabled' page target. people can override this by changing the provision_apache_disabled_url variable (no visible ui for that yet). See #259383

this fixes a few warnings