Git commits in Moodle x.x.x by Nikhil Gupta

commit d099348e320d7512d1b487d3cd87f90d7acd2af5
Author: Nikhil Gupta <nikhilgupta0901@gmail.com>
Date:   Mon, 28 Mar 2011 02:34:15 +0800
Tag:    v2.0.3

MDL-26989 fix incorrect disabling of assignable roles