Simplified travis builds (external setup scripts)
composer/installers dep workaround

Moved to end of requirements, to work around a bug in composer - see https://github.com/composer/composer/issues/1147. This caused the dependencies to be installed in the wrong folder because the custom 'silverstripe-module' instructions hadn't been loaded at the time the core modules were installed via composer.
composer/installers dep workaround

Moved to end of requirements, to work around a bug in composer - see https://github.com/composer/composer/issues/1147. This caused the dependencies to be installed in the wrong folder because the custom 'silverstripe-module' instructions hadn't been loaded at the time the core modules were installed via composer.
FIX Privilege escalation through Group and Member CSV upload (SS-2013-004)

See http://www.silverstripe.org/ss-2013-004-privilege-escalation-through-group-and-member-csv-upload/
Tagged 2.4.13
Merge tag '2.4.13'
Updated silverstripe-framework del version.