Git commits in Moodle 2.5.x by Mohamed Alsharaf

commit a12346d5277c20e01edb5f5469b0fbbc79218a08
Author: Mohamed Alsharaf <mohamed.alsharaf@gmail.com>
Date:   Tue, 30 Jul 2013 10:01:26 +0800
Tag:    v2.5.3

MDL-27684 repository: make require_login() throws exception instead of redirect

commit 47ef2a432a8b5f7a009ca5d48ac7b6ec235a80bb
Author: Mohamed Alsharaf <mohamed.alsharaf@gmail.com>
Date:   Thu, 04 Jul 2013 16:16:10 +0800
Tag:    v2.5.2

MDL-38747 blocks: course format options 'numsections' is required to display the block

commit de5568b18e8586566cfb494b0e8b56fa2c925e3d
Author: Mohamed Alsharaf <mohamed.alsharaf@gmail.com>
Date:   Wed, 12 Jun 2013 07:54:42 +0800
Tag:    v2.5.1

MDL-40091 book: revision must be incremented after editing a chapter