EllisLab/CodeIgniter — pull request #2172 by EpicVoyage (2013-01-19 20:45:53+00:00)
Title: Added display_startup_errors setting to loader.

This typically helps me when a white screen shows up even though I am already in development mode. It is almost always caused by a mis-typed class reference or a forgotten parenthesis, so I am thinking that this would make a useful default.