Git commits in Moodle 1.7.3 by donal72

commit 61e35a87dafb4f019f852da11dbb6f7b0d2d92fc
Author: donal72 <donal72>
Date:   Wed, 18 Apr 2007 14:56:33 +0800
Tag:    v1.7.3

MDL-9424  Removing call to MDL1.8 function

commit 52f24bfec6e31fcd699da8213c28ac1490f7c243
Author: donal72 <donal72>
Date:   Wed, 18 Apr 2007 09:09:15 +0800
Tag:    v1.7.3

Fix for MDL-9216 ("Login as" doesn't work) backported from head