mk-drupal-test-site - When writing out setup.conf, include both the old SVNROOT and the new CIVISOURCEDIR
CRM-13446

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* CRM-13446: Add ON DELETE Options for constraints fails
  http://issues.civicrm.org/jira/browse/CRM-13446
Merge pull request #1816 from pradpnayak/CRM-13446

CRM-13446
Merge pull request #1807 from totten/4.3-mk-drupal-test-site-setup-conf

mk-drupal-test-site - When writing out setup.conf, include CIVISOURCEDIR