Re-add Temporary fix to remove `array to string` conversion errors in PHP 5.4 until CI remember to backport it - fix #618
Re-add Temporary fix to remove `array to string` conversion errors in PHP 5.4 until CI remember to backport it - fix #618

See https://github.com/EllisLab/CodeIgniter/issues/1273 for bug info

Unfortunately 2.1.2 had the same bug when we updated to it.

PeterRock/Ci-Bonfire3,kelaskakap/cms-api-unggun,kelaskakap/cms-api-unggun,kelaskakap/cms-api-unggun,PeterRock/Ci-Bonfire3,PeterRock/Ci-Bonfire3