BOA-2.4.6 Full Edition

We are happy to release BOA-2.4.6 Full Edition, which includes several important system upgrades and bug fixes, plus platforms with latest Drupal cores. Enjoy!

### Stable BOA-2.4.6 Release - Full Edition
### Date: Sat Sep 19 11:09:09 PDT 2015
### Milestone URL: https://github.com/omega8cc/boa/milestones/2.4.6

  @=> Includes Aegir Hostmaster 2.x-head with improvements
  @=> Includes Aegir Provision 3.x-head with improvements
  @=> Includes Drush 7 customized for BOA

# Release Notes:

  This BOA release includes several important system upgrades and bug fixes.
  All supported Aegir platforms have been updated with latest Drupal cores.

  @=> Latest Drupal 8.0.0-beta15 works great, but currently only when installed
      as a custom platform in the ~/static directory tree, because it is not
      really symlinks-friendly. We will re-introduce built-in Drupal 8 platforms
      once this situation is improved.

# Changes:

  * Add Twig C extension to PHP - v.1.22.1
  * Allow to customize auto-upgrades mode
  * Disable support for broken OpenScholar and Recruiter
  * Open default Postgres port for outgoing connections
  * Remove support for deprecated Feature Server distro
  * Remove support for deprecated OpenAcademy distro
  * Remove support for deprecated OpenBlog distro
  * Remove support for deprecated OpenChurch v.1 distro
  * Remove support for deprecated OpenDeals distro
  * Use distro specific Drupal core for problematic distros

# System upgrades:

  * cURL 7.44.0 (if installed from sources)
  * Duplicity 0.7.05 (please run 'backboa install' to upgrade)
  * Jetty 7.6.17.v20150415
  * Jetty 8.1.17.v20150415
  * MariaDB 10.0.21
  * MariaDB 5.5.45
  * MariaDB Galera Cluster 10.0.21
  * Nginx 1.9.4
  * OpenSSH 7.1p1 (if installed from sources)
  * PHP 5.6.13, 5.5.29, 5.4.45
  * PHP: ionCube loader 5.0.18
  * Pure-FTPd 1.0.42
  * Redis 3.0.4
  * Ruby 2.2.3, 2.0.0-p647
  * Use pecl-jsmin-1.1.0

# Fixes:

  * Allow to re-install deleted D7/D6 platforms when dev doesn't exist
  * Do not install phpunit -- it adds many PHP tools we don't need
  * Fix apache cleanup
  * Fix invalid regex in the INI docs
  * Improve auto-healing for SSHd
  * Improve Nginx DoS an DDoS protection
  * Improve pdnsd auto-healing
  * Improve SSL Docs to add more detail about multidomain certificates #757
  * Issue #766 - Fix for broken boa in-octopus procedure
  * Nginx: Fix support for s3/files/styles (s3fs)
  * Sync .htaccess with D7 core
  * Sync keywords for exceptions in daily.sh with global.inc
  * Use short sleep on firewall temp blocks cleanup