hostmaster 6.x-0.4-alpha2

Hostmaster is a component of the Aegir hosting system.

This is the second release of the 0.4 milestone. Many bug fixes have gone in since alpha1, plus a stack of exciting new features.

New features:

* introduce self-provisioning support for Hostmaster to be able to migrate itself to a new platform. Introduce makefiles hostmaster.make and aegir.make, leveraging drush make to build an Aegir system from the ground up for the first time #588114: cannot upgrade aegir with itself because the frontend doesn't follow and #454312: self-provisionning support

Bug fixes:

* hide the Ports form field on the filesystem task in the install profile (was appearing twice) #575872: Ports: appears twice in the hostmaster install wizard
* make commands in install.sh and install.txt not bash-centric #592210: Install.sh chown: cannot access `/var/aegir/{.,*}[!.]*': No such file or directory
* standardize and clarify documentation and install profile instructions to create a mysql superuser #556548: Misleading instructions at "Configure your database server" page
* fix duplicate node_save and verify of initial platform that caused duplicate rows in db, and clean up databases affected by this from a fresh install of 0.4 alpha1 #584188: Duplicate rows in node, hosting_package tables
* make /var/aegir/config readable by the webserver so that includes to /var/aegir/config/includes/global.inc will work #588042: relnotes: /var/aegir/config should be a+X